The ammo price continues to drop, and upper receiver options are everywhere. Want to go a little different? You can use the 5.56/233mags with the 300blk and the bcg, but that's it, so eaither buy a upper chambered in 300blk or swap barrels. In standard 5.56mm, ARs will hit peak burn out of about a 16 barrel, with 14.5 as short as you can go with a 5.56 barrel and still get performant terminal ballistics, complete powder burn, and a lack of a fireball. Satisfaction Guaranteed A2 receiver and stock. That is what will happen!!! Before resting its case-in-chief, Alex Murdaugh's defense team called Timothy Palmbach to the stand. Also, with option for stainless steel or 4150 with Nitride finish barrel. It costs less than equivalent uppers from some major brands. Find your dream complete AR-15 300 Blackout upper receiver from Bear Creek Arsenal! 20" 300 Blackout? | Glock Talk .300 Blackout AR-15 Upper Builds | Delta Team Tactical Need a dedicated optic for the .300 BLK drops? Uppers Bushmaster designs and manufactures premium upper receivers for the AR rifle / pistol platforms. Another proven company for complete uppers. Click on the name to head to the product page, read reviews and check prices or skip ahead to the list of uppers. Grid View List View Sort AAC 300 Blackout Ammo 125 Grain FMJ w/ JAG Head Stamp, 300rds $179.85 Add to Cart Learn the 3 most popular shooting stances & more. MSRP: $529.99 |. I built a .300 in a A2 dissipator configuration, using a pistol length gas system. Cute, friendly and amazing blackout curtains - Tripadvisor Plus, .300 Blackout-chambered AR-15 still uses the same magazines without a loss of capacity, i.e., a 30-round 5.56 NATO AR mag will still hold 30 rounds of Blackout. Blackout was designed to provide more energy and penetrate barriers better than the 9mm, while being compatible with a standard AR-15 magazine. Thanks! If you want to get a little pickier, go with an adjustable gas block or one that's long enough to allow you to slide an adjustable gas gadget under the hand guard and that pokes out a little to let you adjust it. BCM BFH 16" Mid Length (Light Weight) Upper Receiver Group w/ MCMR-15 Handguard $780.00 Out of Stock. The MCX upper has some cool features: - 6.75" Cold Hammer Forged Barrel. I have purchased a couple of .300 blackout upper receivers from MAS Defense. That straightforward build does, however, help in the weight department with the Pro2A coming in 3 ounces lighter than my other 10.5-inch pistol uppers. to cause cancer, birth defects or other reproductive harm. We also love the lightweight handguard, which helps prevent it from getting overly front-heavy when mounted with a suppressor. Don't stop with just the AR-15 upper receiver though. Though these bullets are delivered at a lower velocity, the .300 Blackout's lower chamber pressure and fast-burning powder allow for shorter, lighter barrels ideal for close combat. Ensure that they post a comment . This makes it possible to convert your 5.56 AR-15 into a .300 BLK AR-15 with nothing more than a swap of the upper receiver. ALWAYS ARMED 10.5" 300 BLACKOUT UPPER RECEIVER WITH STAINLESS STEEL BARREL - BLEMISHED $279.00 ALWAYS ARMED 10.5" 300 BLACKOUT UPPER RECEIVER - RIDGEWAY BLUE Now: $219.00 Was: $299.00 ALWAYS ARMED 10.5" 300 BLACKOUT UPPER RECEIVER - SMITH & WESSON RED Now: $219.00 Was: $299.00 Now: $219.00 Was: $299.00 No BCG or Charging Handle required. I chose the 10.3-inch Hanson barrel factory upper to be my trunk gun, where I valued reliability without needing a suppressor to add back pressure. And at close range, the 5.56mm, frankly, is an awful round. For military and law-enforcement applications, a .300 Blackout-chambered M4 is a marvelous sub-gun replacement, with a cartridge considerably more effective than a 9mm pistol-caliber MP5. Really, the biggest change is the barrel and the gas system. My only issue is with the buffer tube and and exploding gas tube but both are my fault. The 10.3-inch length is not too short and not too long from an all-around/fit every human size standpoint because you have to figure in the handguard and potential suppressor length. With that said, weve had 50 years or so to optimize the system, and that is exactly what has happened with the .300 BLK round. $364.99. 7.5 Zombie Thumper Assembled AR-15 Upper (5.56 or 300 Blackout) Rated 4.90 out of 5 $ 249.99 $ 229.99. Get Our Top Shooting Drills and Zeroing Targets ($47 value - but FREE for a limited time). AR-15 Upper Assembly - 16 / 300 AAC / 1:8 - CBC Precision AR's No votes yet. I became my group's "gun guy" and everyone who had questions came to me. This page was last edited on 20 November 2022, at 17:47 (UTC). It ate everything I put through it and shot as well as any other 10.5-inch upper in my collection. At a mere 200 yards with a 100 zero, the 300 Blackout drops nearly 5.5 inches more than the 5.56, at 300 yards it drops a whopping 19-inches more. AR 15 Uppers - Bravo Company USA Shop AR15 Complete Upper Receivers for your custom AR15 build. See. Out of Stock. The Gau Munich-Upper Bavaria (German: Gau Mnchen-Oberbayern) was an administrative division of Nazi Germany in Upper Bavaria from 1933 to 1945. Weve built dozens of ARs and well cover all the best AR-15 upgrades such as handguards, triggers, BCGs, gas blocks, and more. Its short and sweet and perfect for a .300 BLK pistol or SBR. SHOP Pro2a Tactical's huge selection of AR-15 complete uppers in a variety of calibers - 223/5.56, 300 Blackout, 7.62x39, 6.8 SPC II, 6.5 Grendel, 6mm ARC, 450 Bushmaster, 50 Beowulf (12.7x42), 458 Socom, 224 Valkyrie. Primary Weapons Systems sells a complete upper exclusive on Brownells that is competitively priced compared to the others on this list, but you get a far superior action. All Rights Reserved. This one has a short barrel that leaves plenty of room beyond the handguard for your desired can, making it perfect for home defense or close quarters. Preferably 9" barrel. Review of Hotel Beer. Besides the easy conversion between 5.56 and .300 BLK, the .300 BLK does a lot the 5.56 cant. . Sig is attaching these to the new Army rifles running 6.5. Sort By: Ghost Firearms Elite 16" Upper .300 Blackout - Black $319.00 $249.00 Choose Options Ghost Vital 7.5" Upper .300 Blackout $299.00 $239.00 Choose Options Enjoying your AR reviews. The key to making your AR 15 compatible with 300 Blackout ammo is your AR 15 upper, and when making your AR-15 or M4 compatible with 300 BLK ammo, you want the best 300 Blackout upper receiver for your dollar. Pair your 300 Blackout upper with an upgraded Blackout barrel to create an even more unique firearm. MCX VIRTUS UPPER ASSEMBLY - 11.5" 5.56 NATO $1,799.99 Add to Cart Restricted in some areas New! My editors pick recommendation for a do-all .300 BLK upper. To be fair, we certainly like the 5.56mm: its a capable round thats lightweight, shoots reasonably straight out to about 500 yards, and has been getting the job done since Vietnam. Best .300 BLK Guns and Uppers - Firearm Review I bought the 8.5" Radical Arms upper for my SBR. 300 seems to be heating up again and with the eform form 4, suppressors (and calibers that are easily suppressed) are also popular. They are mil-spec, and all feature flat top uppers, forwards assists, and threaded barrels. However, subsonic 300blk tends to be pretty good about letting the operator breathe, depending on manufacturer. All our side charging and standard charging 300 blackout uppers are compatible with mil-spec. Notify me of exclusive sales and special promotions. These 300 Blackout uppers all feature different-length handguards and are all equipped with a standard A2 muzzle brake that's been proven efficient and effective. Awesome products by an awesome seller. 300 blackout is designed as an SBR suppressed cartridge you have no need for a barrel longer than 16. 300 Blackout Barrels | Custom AR-15 Barrels | Wing Tactical The 300 blackout is a great hunting round for relatively close ranges on anything up to whitetails. The crime scene expert testified that the evidence suggests two shooters carried out the murders of Maggie and Paul Murdaugh in June 2021. Quick View. I have a PWS piston upper in 300blk. Knowing the industry, there must be some amazing options on the market I simply havent seen. First off, its a very versatile load with projectiles weights ranging from 110 grains to 220 grains. $99.99 $71.99 Sale. The upper pairs a Tactical Kinetics 10-inch 4150 Chrome Moly Vanadium Steel, 1:8 barrel with a 9-inch M-LOK Free Floated handguard from Axis MFG built around a 7075-T6 upper receiver, all of which gives the Pro2A Tactical upper a very spartan look. SIG SAUER's adding a suppressed upper receiver to their lineup: the SUR300. SAVE NOW! Nav Menu 8. Recoil Technologies AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group. Hand-Picked Daily GUN DEALS, and Exclusive Coupons Codes >>>, projectiles weights ranging from 110 grains to 220 grains, https://uploads.tapatalk-cdn.com/20160501/d175a60f384060cfabc4c555b349fd4f.jpg. The 5.56mm upper has a 10.5-inch barrel, while the .300 Blackout upper employs a 10-inch barrel (though, it utilizes a 1/2-inch longer suppressor core to even out the lengths between the two options). I noticed that the rifle feeds better using tapco magazines but Ive had some success with my hexmags as well. or something you wish we had, please let us know! To keep gas out of your face, you may want to choose one of the new flow-through, 3d printed suppressors from OSS/HuxWrx. Learn more at. Nav Menu 5. Market monitoring: Aero precision Upper complet 8'' pour carabine Semi Another cool trick the Pro2A upper pulls off? Check out our Best .300 BLK Scopes & Optics. Plus no nose bleeds from slapping yourself in the face when your hand slips. Uppers | Parts | SIG SAUER Please be cautious when considering offers from individuals offering you items. Make sure you keep ammo and mags separate. Upper Bavaria ; Munich ; Munich B&Bs / Inns ; Hotel Beer; . But we all love a good brace! M5E1 Assembled Upper 20" 6.5 Creedmoor SS Rifle Barrel M-LOK 15 HG - Anodized . $509.00 $369.00. Check them out! For my suppressed home build, I went with a 9-inch Modern Series barrel for something slightly shorter but still reliable. You'll now receive newsletters of our best articles on techniques, INTEGRALLY SUPPRESSED . Despite all of the lasers, tech accessories, and modern features, the AR platform is more than half a century old. [WTB] 9" 300 Blackout Upper (CA) : r/GunAccessoriesForSale For Blackout Drunks Only - Review of Holiday Inn Munich - Tripadvisor Simple but effective. 300 Blackout Upper | AR-15 300 Blackout | 300Blk Uppers - Always Armed LAR-15M Complete Upper Halves .300 AAC Blackout. The circa 2011 Advanced Armament Company's .300 Blackout AR-15 platform, achieving impressive performance from just a 9-inch barreled SBR. Add To Cart. Gau Munich-Upper Bavaria - Wikipedia The 300 Blackout AAC Rifle Assembled Upper Receivers come in 16" Barrel Length. (Limited Time Offer), Get the latest updates on new products and upcoming sales, Browse by Barrel Length, Barrel Style & more, AR-15 Bolt Carrier Groups and Charging Handles, Flash Hiders, Suppressors, and Compensators, Gas Blocks, Gas Tubes, and Front Sight Bases, BCM Upper Groups with KMR (KeyMod) Handguards, BCM Upper Groups with (M-LOK) MCMR Handguards, BCM Upper Groups with QRF (Quad Rail Forend), Armorers Tools, Cleaning, Lubrication, etc, All Armorers Tools, Cleaning, Lubrication, etc, BCM Standard 9" 300 BLACKOUT Upper Receiver Group w/ MCMR-8 Handguard, BCM MK2 Standard 9" 300 BLACKOUT Upper Receiver Group w/ MCMR-8 Handguard, BCM Standard 7" 300 BLACKOUT Upper Receiver Group w/ MCMR-5 Handguard, BCM MK2 Standard 16" 300 BLACKOUT Upper Receiver Group w/ MCMR-15 Handguard, BCM Standard 16" 300 BLACKOUT Upper Receiver Group w/ MCMR-15 Handguard, BCM MK2 Standard 12.5" 300 BLACKOUT Upper Receiver Group w/ MCMR-10 Handguard, BCM MK2 Standard 9" 300 BLACKOUT Upper Receiver Group w/ KMR-A8 Handguard, BCM Standard 9" 300 BLACKOUT Upper Receiver Group w/ KMR-A8 Handguard, BCM Standard 12.5" 300 BLACKOUT Upper Receiver Group w/ MCMR-10 Handguard, BCM Standard 16" 300 BLACKOUT Upper Receiver Group w/ MCMR-13 Handguard, BCM MK2 Standard 9" 300 BLACKOUT Upper Receiver Group w/ QRF-8 Handguard, BCM Standard 9" 300 BLACKOUT Upper Receiver Group w/ QRF-8 Handguard, BCM MK2 Standard 12.5" 300 BLACKOUT Upper Receiver Group w/ KMR-A10 Handguard, BCM Standard 9" 300 BLACKOUT Upper Receiver Group w/ MCMR-7 Handguard, BCM Standard 16" 300 BLACKOUT Upper Receiver Group w/ KMR-A15 Handguard, BCM Standard 7" 300 BLACKOUT Upper Receiver Group w/ KMR-A5 Handguard, BCM MK2 Standard 16" 300 BLACKOUT Upper Receiver Group w/ KMR-A15 Handguard, BCM Standard 12.5" 300 BLACKOUT Upper Receiver Group w/ KMR-A10 Handguard, BCM Standard 9" 300 BLACKOUT Upper Receiver Group w/ KMR-A7 Handguard, BCM MK2 Standard 16" 300 BLACKOUT Upper Receiver Group w/ QRF-12 Handguard, BCM Standard 16" 300 BLACKOUT Upper Receiver Group w/ KMR-A13 Handguard, BCM MK2 Standard 16" 300 BLACKOUT Upper Receiver Group w/ KMR-A13 Handguard, BCM Standard 16" 300 BLACKOUT Upper Receiver Group w/ QRF-12 Handguard, BCM Standard 12.5" 300 BLACKOUT Upper Receiver Group w/ QRF-10 Handguard. .300 Blackout AR-15 upper barrel lengths are available from 7 inches to 16 inches with all standard sizes in between. 300 Blackout Ammo - Palmetto State Armory I was surprized how tight the Pro2A upper fit with my various pistol lowers. The M4E1 300 Blackout Upper is available in 8", 10", and 16" barrel configurations. Show Filters Showing all 12 results. We may earn a commission on purchases from a link. This pistol runs flawlessly. AR-15 Upper Assemblies | Various Calibers - Pro2A Tactical AAC 300 Blackout Ammo 125 Grain FMJ 20rd Box w/JAG Head Stamp $11.99 $0.60 Add to Cart AAC 300 Blackout Ammo 220 Grain Sierra MatchKing HPBT w/Cannelure 20rd Box $17.99 $0.90 Add to Cart PSA 7.5" 300AAC Blackout 1/8 Phosphate 9" Lightweight M-Lok MOE EPT SBA3 Pistol Kit - 5165448841 Rating: (66) $799.99 $509.99 Add to Cart Home > PRODUCTS > BARRELED UPPER (NO BCG/CH) > .300 BLACKOUT: MHR RPR Like Radical Firearms on Facebook. Out Of Stock. [email protected] US. DS-15 Complete Upper 16" Typhoon .300 Blackout Non-Threaded Black $ 799.95. To view this site, you must enable JavaScript or upgrade to a JavaScript-capable browser. Weve got a dedicated section for the AR-15 here. My gunsmith is just finishing up my 20 inch 300 Whisper barrel. For military and law-enforcement applications, a .300 Blackout-chambered M4 is a marvelous sub-gun replacement, with a cartridge considerably more effective than a 9mm pistol-caliber MP5. Bushmaster has you covered on your next AR build or upgrading project chambered in 5.56mm, .300 Blackout, or 7.62mm. Every 300 BLACKOUT Upper we sell can be configured to your specifications. Davidson Defense .300 Blackout Caliber $494.00. Select options. If youre in the market for a quality upper and are bored with shopping big-boy retailers, check out Pro2A Tactical. Msg frequency may vary. Since we think a high-quality .300 Blackout does so well suppressed, we think a pistol upper with a threaded barrel is the perfect way to get the best out of the round. Uppers - Diamondback Firearms Running windowed PMAGs in my .300BLK PSA PA-15. But I will make sure to put this on the list to get to it sooner rather than later. It has a longer range than .300. Add to Cart $249.95 $349.95 AR-15 300 AAC blackout 16" pistol length upper assembly / 15" Mlok Please send me the specs (including the name of the suppressors). And stay in touch with newsletters of our best articles on techniques, guns, & gear. LAR-15LH Lef-T Complete Upper Halves .223/5.56mm, LAR-15M Complete Upper Halves .350 Legend, LAR-15M Complete Upper Halves .450 Bushmaster, LAR-15M Complete Upper Halves 6.8mm SPC II, LAR-15M Complete Upper Halves .300 AAC Blackout, WARNING: The products offered for sale on this website can expose you to chemicals which are known to the State of California Looking for a 300 blackout upper receiver for around $300. Palmetto State Armory 10.5" Complete Upper Receiver Kit. Type your new password and hit button below to confirm it. My first ar 15 was on of their rf15. UPPERS | Noveske Rifleworks anything extra and your Set Descending Direction. .300 BLK Uppers | Ballistic Advantage Rifle? When it comes to a bad-breath-distance engagement, we want a .300 blackout. Free Bolt Carrier Group with Purchase of Upper Receiver Group. .300 Blackout and .308 are both popular rounds used in AR-10 style rifles. 0. Offering 5.56 NATO and 300 Blackout options, the Radical uppers offer a free-floating m-lock hybrid rail with a M4 military standard upper receiver forged with 7075 T6. I haven't tried it, but it seems implausable. It carries a silencer central can and my property is super densely forested very few clear long shots so this is absolutely perfect for me. Davidson Defense Premium Left Handed M16 AR-15 Black Nitride Finish Bolt . I saw the 300BLK fire from the 5.56 chamber rife, What would happen if you fire a 5.56 from a 300BLK rife. What I will do is point you to a few of the best .300 BLK upper receivers so that you can make your transition to this wonder-round. 289 119. But at their price point I can buy a complete upper for the cost of a barrel from other name brands. Lightweight, compact, maneuverable, this integrally suppressed upper is able to serve in . Were reader-supported, which means we may earn a small part of the sale from links to any products or services on this site. I have one of their left handed ARs. Rating: 100%. You wont find a piston system as compact as the rattler anywhere. Nav Menu 4. Special Price $339.99 $479.99. So what I'm gathering from this is, I can use a 5.56 BCG as well as a charging handle in a .300 blackout upper, correct? It had virtually no slop, and in some cases had a tighter fit than factory uppers. Groupings were tight at 50 and 100 yards (or as tight as I can muster), and I experienced no issues with feeding or reliability. guns & Brenton USA Guide 18in .300 AAC Blackout Upper Receiver $1,349.99 (Save 21%) $1,069.00 On Sale. Both rifles are Wilson Combat, I'm not sure if those exact ones are still made though. And be sure to snag a bufferless Picatinny end lower receiver. BCM Standard 20" Upper Receiver Group w/ KMR-A15 Handguard. Take the U.S. Military's 5.56 M855A1Enhanced Performance Round (.371 BC, 2,970 fps MV ) and a somewhat comparable load for the 300 Blackout, Hornady's 125 gr FMJ Frontier (.250 BC, 2,160 fps MV). BCM MK2 Standard 9" 300 BLACKOUT Upper Receiver Group w/ KMR-A8 Handguard. Bushmaster Uppers - MGW 10.5 GEN 3 SHORTY UPPER $ - $ Select options. It also requires 9mm-specific components and you still end up with a sub-par AR full of compromise (or more of a PCC). There are virtually no markings on the upper other than the barrel and Cerro Forge keyhole marking. Gemtech Integra Upper - Silencer Shop The .300 BLK has easily been the most successful new caliber in the last 20 years. Aero Precision .300 Blackout Stripped and Complete Upper Receivers at 2016-2023 ALL RIGHTS RESERVED. Unfortunately, the item(s) selected is out of stock. Go the folded brace route with a BRN-180 upper. Barrels - AR Uppers & Lowers, Rifle Accessories, Mil-Spec Parts The AR is often adapted to function in calibers it was never designed for shooting. For this reason, we have declared the author for all reviews created in the old system as "Legacy Reviewer". Headspaced checked out good. 300 Blackout Rifle Uppers - Daytona Tactical The 16" barrel has a 1-8 twist rate and a Type 3 Hard Anodized - Black Finish. Check out more calibers and everything AR in the Ultimate AR-15 Resource. Copyright 2023 Pew Pew Media, Inc. All rights reserved. Prices range, but each option is affordable and thoroughly modern. Interested in a one-stamp, integrally-suppressed blackout upper. Your Price: $450.49. the next step on your AR is to upgrade to a 300 Blackout upper, Ghost Uppers from ghost firearms. Sign up and get exclusive access to promotions, sales events, pre-order sales & more! Best .300 Blackout Uppers - Sniper Country Products are selected by our editors. We already have an account registered for email address Get 10% Off - Subscribe to Our Email List, Please check your email for confirmation message. What are your favorite .300 BLK upper receivers? Primary Weapons Systems MK109 Piston Upper (9.75" 300 Blackout Barrel) $1,029.49 - $1,299.95 Out of Stock Seekins Precision Seekins Precision NX8 .300 Blackout 8" Complete Upper Assembly $899.00 $855.00 LEO and MIL First responder discount available. Founder & Licensed Concealed Carry Holder. AR Uppers - Tactical Solutions Group LLC Youll need to bring your own BCG and charging handle but for those who know and rely on the Aero brand and want to keep it short, this is a quality upper. Still need? $199 at Palmetto State Armory Jump to Details I wont dive too deep into the 5.56 vs. .300 Blackout debate because we have an article on that. 410 at Aero Precision. Javascript is disabled on your browser. LAR-15M .300 AAC - Rock River Arms Customize your 300 BLACKOUT Complete Upper with an optic, muzzle device, rail, bolt carrier group, magazine, or charging handle from our matched selection. Upper Builds > .300 Blackout Compatible. Rating: Special Price $369.99 $509.99. The handguard is simple, spartan, and helps keep the build light. Choose Options. Aero makes gear that works, and these uppers are perfect for your next .300 BLK build or to convert your 5.56 rifle. The .300 Blackout cartridge is available . 300 BLACKOUT - MAS Defense Best .300 Blackout Barrels: Ultimate Guide for Shooters Check. Learn More. shooting 5.56 in a 300blk will not explode - but your guess is as good as mine where the bullet goes . Shoot a large variety of grain weights with exceptionally well performance with subsonic ammo and suppressors. Daniel Defense produces some of the best high-speed platforms to more than capable operators like the U.S. Navy SEALs. This would be for an 8" barrel. There is a flash can tucked neatly inside the handguard. Also, youll want to consider what muzzle devices you want to try out. The fit on a variety of lowers was tighter and had less play than pistol uppers that had been paired with their lowers from the factory impressive! At barrels this short there is no room for error, so a suppressor paired with a hand stop gives you more stability to work with. Radical Firearms .300 AAC Blackout Upper Assembly. Buy a 300 BLK upper receiver today, and make sure to check out all of our AR 15 parts to shop for high-quality gear for your other ARs. ALWAYS ARMED Jester 10.5" 5.56 NATO JESTER FLASH CAN PISTOL KIT - BLACK. It's also great for self-defense. We asked Clint Hanson, the founder of Ballistic Advantage, and his go-to barrel length is 10. inches for reliability. What handguard/upper is the bottom most picture with the 2 rifles? For the best experience on our site, be sure to turn on Javascript in your browser. Get your 300 Blackout upper from BCA today and experience durability and precision you wont get anywhere else! DS-15 Complete Upper 7.5" Typhoon 5.56 Threaded Black $ 799.95. I had initial problems with using an upgraded WMD NiB BCG, but once I switched back to a mil-spec BCG it ran everything like a champ. The .300 Blackout is here to stay. New From SIG SAUER: Suppressed 300 Blk Upper Because it moves slower, its also a lot quieter: this makes .300 blackout a great choice for a good flash suppressor, a silencer, or a muzzle brake, which requires a threaded barrel. To view this site, you must enable JavaScript or upgrade to a JavaScript-capable browser. .300 AAC Blackout Chamber. I love Ballistic Advantage 5.56 barrels (full review) for the right mix of performance and affordability. Read on to see how to get your standard 5.56 AR-15 ready to use .300 BLK. Im one man and couldnt possibly see each and every upper out there. here's just what you're lookin' for bud. To convert your standard AR into a .300 Blackout rifle, it's as simple as swapping out the upper . 888.706.0633, 10.5" 300 BLACKOUT Ballistic Advantage QPQ DRP Barrel - 10" Rail - A2 Flash Hider - AR 15 Upper, 10.5" 300 BLACKOUT Ballistic Advantage QPQ DRP Barrel - 12" Rail - Slim Cone Flash Can - AR 15 Upper, 16" 300 BLACKOUT Nitride Heavy Barrel - 12" Rail - A2 Flash Hider - AR 15 Upper, 16" 300 BLACKOUT Nitride Heavy Barrel - 15" Rail - A2 Flash Hider - AR 15 Upper, 16" 300 BLACKOUT Parkerized Heavy Barrel - 12" Rail - A2 Flash Hider - AR 15 Upper, 16" 300 BLACKOUT Parkerized Heavy Barrel - 12" Rail - A2 Flash Hider - BCG - CH - AR 15 COMPLETE UPPER, 16" 300 BLACKOUT Parkerized Heavy Barrel - 15" Rail - A2 Flash Hider - AR 15 Upper, 16" 300 BLACKOUT Wilson Combat Stainless Glass Bead Ranger Barrel - 12" Rail - A2 Flash Hider - AR 15 Upper, 16" 300 BLACKOUT Wilson Combat Stainless Glass Bead Ranger Barrel - 15" Rail - A2 Flash Hider - AR 15 Upper, 8" 300 BLACKOUT Ballistic Advantage QPQ DRP Barrel - 10" Rail - Slim Cone Flash Can - AR 15 Upper. 300 Blackout uppers with rails at low prices. - KM Tactical During the data transfer we were unable to preserve nicknames, authors, or helpful scores for older reviews. This includes magazines, bolt carrier groups, upper and lower receivers, rails, buffers, buffer assemblies, stocks, etc. The new upper chambered in the ever-so-chic 300 blackout (300blk) fits the SIG MCX and a standard AR15 lower. Just swap the barrel and gas system and commence pow-pow. English. that accommodate the mounted flash suppressor. And its pistol-length gas system ensures reliable cycling with whatever it's fed.