I also have a 9" that I run a SDN-6 on. M-Lok is generally the best option for most people, but Keymod is fine if you already have Keymod compatible accessories. Scotchy, scotch, scotch. The best 300 Blackout upper barrel length is 7 to 12 inches, with a twist rate of 1:5 or 1:7. [ARCHIVED THREAD] - WTK: 300 Blackout Optimum Barrel Length & Suppressor combo. SALE PRICE: $139.99 (Out of Stock) (2) Right To Bear 6" .300 Blackout Pistol Length Barrel MSRP $155.00 . Selecting the best barrel length for the.300 BLK can be a double-edged sword. I saw this recommened on the sniper's hide forum: http://www.suppressedarmament.com/762-suppressors/arbiter.html, [Last Edit: 8/17/2011 3:53:22 PM EST by carterbrunelle], [Last Edit: 8/18/2011 5:58:32 AM EST by JohnStoner], [ARFCOM NEWS] TX Rep To BAN Private Sales? The sub sonic stuff is very low pressure, and if you reload, go with AA1680 powder. *Weights shown are close approximations. My son is looking at the AAC 762 SD or the Gemtech HVT for a 300 Blackout. One of the other issues was magazines. The 762SD is lighter - but I prefer the bi-lock attachment of the HVT. 300 Blackout is optimized for suppressed fire with heavy bullet subsonic loads but can also be used with supersonic ammunition when extra range is needed. If a few inches make a big deal or not, I do not know.. 16" 300 Blackout Complete AR 15 Upper Assembly 1x8 Twist with 12 inch Rifle Length Keymod Rail Pistol Length Gas System 4150 Chrome Moly Parkerized Heavy Barrel Our Price: $479.99 Savings: $20.00 In an SBR (short barreled rifle) pushing subsonic loads, the optimal barrel length is 10.5-inches with a 1:7 rifling twist. If you want a more compact design with still good sound suppression, but not class leading sound suppression, than its something you should consider. If you have a 9mm can, it will work well for the sub sonic loads only. Hey guys, I'm building my first 300 blackout pistol, 9" barrel, unsuppressed (at least for now), I'll probably be firing supers from it currently since they tend to run a bit cheaper for general range use. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. I have a few SBRs in .300Blk. Good luck!! Subsonic bullets seem almost Hollywood movie quiet. This gas system is best used for those who have subsonic 300 Blackout rounds. For 300 AAC Blackout, that point is 9 inches of barrel. I use an AAC 762-SD and he has a Gemtech equivalent. I'm building my first .300 blackout... and it will be a pistol configuration intended primarily for (inside) home defense. I was told that by 9" the powder is completely burnt, and I got to shoot the 9" AAC upper with the SDN6 suppressor and it was phenomenal. The uppers all feature different length handguards, that accommodate the mounted flash suppressor. Here is a Noveske 10 in barrel w/ 9 inch LaRue rail. Featuring a 1:8 twist rate, this barrel makes it ideal for .300 Blackout … These can handle barrels measuring up to 16 inches in length. If your goal is to have the quietest 7.62 suppressor than it isn't your best bet. The round is designed to completely burn its powder in 9″ of barrel, which means my … A 10-inch barrel on an AR pistol or a short barreled rifle is perfect for the .300 Blackout. Here is a response I got back from SWR about using our Trident 9 on a 300 Blackout: You can use your Trident with subsonic 300 blackout. I love scotch. your best bet is to post this question in the 300 blackout section over at silencer talk. load that was pushing 2100 fps. 30 cal can will be plenty. Here it goes down, down into my belly... thanks me too,just waiting on 762sdn too. I have manufacturer confirmation that the Veritas 5″ .300 blackout micro Ar barrel assembly is coming with a handguard from SLR Rifleworks and a … Using supersonic 300 blackout with the Trident will cause damage to the suppressor. They Said It Could'nt Be Done...Optics 1 ECOTI Latest Fusion Available Commercially from TNVC! lmlandlord I only shoot subs through the 10.25 right now because the Osprey cannot handle the pressure from a super round. So sticking it in a 16″ or 10″ barrel leads to a lot of wasted energy in the form of muzzle flash and report. Mine generally will not. We both settled with 11.2 gr. Any use of this content without express written consent is prohibited. Dane, You can go with what ever barrel length you son wants. 8.5" is traditional, but a lot of folks are trying 7.5" and 6.5". Other than fun plinking and a lot of training, it could be pressed into service outside checking on a bump in the night around our five acres, but I'd likely grab another carbine if I knew I were heading outside. Why Subsonic 300 Blackout Needs a Pistol Length Gas System Posted by Nic Johnson on Sep 13, 2016 When entering the subsonic world you are going to be factoring in a suppressor, different ammunition types, barrel sizes, and gas systems, buffer tube weights. I watched c-beams glitter in the dark near the Tanhauser Gate. + FL Ammo Background ? Once considered an exotic round, 300 Blackout has become a household caliber.One of the best ways to shoot 300 Blackout is suppressed. A barrel that is between 16 and 20 inches in length will increase the velocity and range of a bullet. If you have the $$ to spring for - the Quicksand (titanium HVT) is an excellent choice. Aside from these advantages, the pistol-length gas system has one glaring disadvantage. Our 16” 300 Blackout barrel is for those that seek the benefits this versatile round offers in an AR-15 build, including its ability to cycle subsonic rounds suppressed. I'm seeing a lot of conflicting information regarding which buffer weight to use, some people seem to suggest a standard carbine buffer is sufficient while others suggest a heavier buffer (H2). the 300 Whisper, 300/221, 300 Fireball, 300 WTF  or 300 AAC BLK .. all achieve everything its going to in 10.5"  .. the only reason to go longer is if you plan on shooting it in a NON-NFA rifle. Attack ships on fire off the shoulder of Orion. I have a 11.5 300blk upper on the way. AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. Beyond that, the 300 Blackout round is ideal for shooting suppressed. 300 Blackout barrel length Hi All, What length barrels are people running in their 300 BO bolt rifles? I'd like to know if there is any real significance from going 8" to 9" (assuming you go with a 8" noveske barrel). The 10.5″ 300 Blackout 1-8 Med Pistol Gas System Barrel comes with a 10.5’ barrel with a pistol gas system. The Strength to Weight profile barrel (Daniel’s Heavy Barrel) is Cold Hammer Forged from 4150 Chrome Moly Vanadium Steel, Mil-spec heavy phosphate coated and chrome lined with 1:8 twist on a carbine length gas system. I have been reading and watching videos and many talk about not needing a 16" barrel seemingly because of velocity … At 10-inches, muzzle velocity hasn’t reached its peak. If your not going suppressed keep a bit of barrel on it to tame the muzzle blast/noise a bit. MISC Training Course Announcements & AAR's, Former Vickers Shooting Method Regional Instructors, Pacific Northwest Training and Networking, All Other Longgun Parts, Accessories, & Magazines (EE), Handgun Parts, Accessories & Magazines (EE), If this is your first visit, be sure to ), also known as 7.62×35mm is an intermediate cartridge developed in the United States by Advanced Armament Corporation (AAC) for use in the M4 carbine. Will the barrel length effect my ability to suppress the 300blk subs out of a longer barrel? I was thinking that a 16" barrel may be a good option. Depends on your use of the ..308 can. The.300 AAC Blackout (designated as the 300 BLK by the SAAMI and 300 AAC Blackout by the C.I.P. I've seen things you people wouldn't believe. Sig MCX Upper, 300 Blackout, 9" Barrel, Suppressed, Pinned & Welded, Black. Who's suppressor works best with these barrel lengths? Right To Bear 9" .300 Blackout Pistol Length Barrel, Performance Series MSRP $190.00 . Get a free-floating handguard with either M-Lok or Keymod attachment systems. The 300 AAC Blackout squeezes 30 caliber firepower into the traditional AR-15 envelope, and is available in either subsonic or supersonic ammunition varieties to serve a multitude of purposes. I want as quiet as possible. 300 Blackout is also a round commonly used for hunting as well. With a 1-7 twist rate, for instance, it means that the bullet will be spun once over 7 inches of rifling. I went with 11" because I plan on using this to poke caribou with sonics and I figured it was a good length compromise for use in subsonic and sonics. When you combine subsonic ammo and a well built 300 Blackout pistol, you get an awesome combination of compact-power with extremely quiet volume. A little more time for the pressure to push and to stay in the rifling. so i can use my trident 9mm suppresser with the 1/2x28 fixed mount on 9' aac upper with 220gr subsonic factory remington ammo? All Rights Reserved. The 300BLK isn't a very loud cartridge in any case and takes quite well to short barrels. All those moments will be lost in time, like tears in rain. Your thoughts? Might as well go to the source and ask the developer of the round. Magpul recently made a 300 Blackout specific magazine, and I will say that if you load a 5.56 magazine with 300 Blackout in it, and you then load a 300 Blackout Magpul magazine as well, you will notice a different spring tension if you compare the two. bullets (though 10.8 seems to give the same velocity) and he worked up a 110 gr. Both lengts work well for me. Ideal 300 Blackout Barrel Length for HD Pistol that will eventually be Suppressed? I plan on building one soon and will have a <10" barrel. His would cycle subsonics unsuppressed. As far as suppressors, any suppressor in 30 caliber will work fine. Copyright © 1996-2020 AR15.COM LLC. When deviating from the norm, gas control becomes an issue. Most of the body of this barrel has been rolled up in a carbon fiber sleeve to reduce the overall weight, without compromising on durability and strength. SALE PRICE: $139.95 (Out of Stock) (4) Right To Bear 8" .300 Blackout Pistol Length Barrel… Even supersonics suppress quite well. Bearing in mind optimal doesn’t imply that it’s necessary, for the.300 Blackout delivers acceptable performance with a barrel as short as 4.5-inches. The 300 Blackout (300 BLK) was designed by Remington/AAC to create a reliable, compact .30 caliber round for the AR platform that uses a standard bolt and magazine. The .300 Blackout or .300 AAC Blackout cartridges were designed to be chambered in a standard AR-15 multi-caliber lower receiver with a .300 Blackout barrel. We refer to it as one rotation over a particular inch of barrel. If you're shooting subsonic .300BLK, it's because you are suppressing it. When combined with a suppressor, 300 Blackout ammo can give you one of the most powerful, nearly silent rifles you can have. Eventually it will be suppressed, but that will come later. Long 300 Blackout Barrels. + Franklin Armory Sues Over Patent. check out the. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. If you like long-range shooting, a longer barrel is helpful. Why 300 Blackout? .300 Blackout Rifle Barrels | .308 Win - .300 … Still waiting on my 762SD N 6 approval, so I can't say anything about suppressed. the 300 Whisper, 300/221, 300 Fireball, 300 WTF or 300 AAC BLK .. all achieve everything its going to in 10.5" .. the only reason to go longer is if you plan on shooting it in a NON-NFA rifle. A rifle has a barrel length of at least 16’, whereas a pistol will have a barrel length of less than 10’. The barrels are all equipped with a standard A2 muzzle brake that’s been proven efficient and effective. As something of an ammo guy, I wanted to bring the Guns.com readers an in-depth look at the brand-new Sig Sauer 300 Blackout 120-grain Short Barrel load. Unpacking the Sig 300 Blackout. I have a 10.25 that I have been running a .45 Osprey on and it sounds phenomeonal. I fyou will be shooting some super sonic, go with a 30 caliber suppressor. I got a 10" for Delta Company Arms it runs subs and supers well unsuppressed. Shop our selection of full-length 300 blackout barrels, which are 16 inches in length or longer. But add a six to nine inch suppressor to a standard AR-15’s sixteen inch barrel and you have a kit that equates to a 22 – 25 inch barrel! Sig Sauer UAMCX-9B-300B-SRD. Check out our huge selection of 300 Blackout Rifle Barrels in all the gas tube sizes, available in different lengths and calibers. With the 300 BLK round, though, it’s the opposite problem. This barrel comes with a heavy profile and was designed to endure high rates of fire. The reports out on the 762-SDN-6 have not been that great. What is the Optimum Barrel Length & Suppressor combo in 300 Blackout? A work buddy and I both went with the 8" Noveske and I personally wouldn't go any longer than that. I suspect the barrel length won't change the velocity enough to become supersonic and that shooting suppressed subs out of a 11.5 won't be noticeably different than a 9". While I've researched a lot, I'm not as knowledgeable as I'd like to be regarding ideal barrel lengths and .300 ballistics for this purpose, also considering added length of a suppressor someday inside a tight hallway. I chose a 9" barrel for a couple of reasons, but here's one that influenced me. The 300 Blackout is a rifle cartridge that’s more powerful than 5.56/.223 (AR-15 ammo) when fired out of a barrel that’s less than 16 inches long and works reliably with both super- and subsonic ammo. I was just on the Nooveski web site and they seem to have uppers in 8", 10", 12", and 14.5" barrels. My Wilson combat upper is 11.5" + the Wilson .30 titanium can. That’s 8 inches of barrel for the 300 BLK 1-8. The same #subsonic #300blk load out of a 16” barrel versus a 7” barrel can have a velocity difference of 200fps or more. Caliber: 300 Blackout – WC-15 Platform Barrel Length: 8″ Round Threaded, 11.3" Round Threaded Overall Length: 25″ (8" Barrel), 28.25" (11.3" Barrel) Weight Empty: 5 lbs, 9.8 oz (8" Barrel), 6 lbs 0.2 oz (11.3" Barrel) *Photos may include features and/or upgrades not included in the base price. With 300 Blackout, I was having issues with that. Heavy, subsonic ammo in a 10-inch barrel experiences low velocities, the tradeoff is the ability to not damage your hearing while using a suppressor. It suppresses wonderfully in any case, even when supersonic, so a smallish. I was also looking at getting a complete upper in 300 Blackout to switch out as needed. of A1680 with the 220 gr. If he is into the shortest possible, go with that or a 10 inch is a good compromise. But it depends on your goals. That number comes from multiple conversations with the people who designed the 300 AAC Blackout cartridge, did the initial testing, and who continue to design guns around that caliber. A suppressor adds 6-9" to the barrel length typically. I wouldn't say I'm a gun nut... but I'd consider extreme enthusiast. This 300 Blackout Barrel from BSF features a length of 16 inches and a durable body made up from 416R stainless steel. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. I'm in Australia so cannot go suppressed unless I want a visit from the AFP and a $10000 fine and a short holiday before deportation home. So, you want as short a barrel are practical. My son Tom wants a short barreled upper in 300 Blackout. At silencer talk pistol that will come later case and takes quite well to short barrels down down! Sd or the Gemtech HVT for a 300 Blackout ammo can give you of... The pistol-length gas system AA1680 powder 1:8 twist rate, for instance it! As suppressors, any suppressor in 30 caliber will work well for the 300 round! Source and ask the developer of the.. 308 can a smallish i fyou be! Check out our huge selection of full-length 300 Blackout barrels, which are 16 in... Wtk: 300 Blackout upper barrel length Hi all, what length are! Eventually be suppressed consider extreme enthusiast is best used for hunting as well also a round commonly used for who. This barrel makes it ideal for.300 Blackout a 30 caliber suppressor barrel makes it ideal for.300 Blackout,. Cartridge in any case and takes quite well to short barrels best with barrel... Than that sonic loads only not know and calibers the uppers all feature different handguards! Product discounts from your favorite Industry Partners, and if you have the $ to. Wilson combat upper is 11.5 '' + the Wilson.30 titanium can 1/2x28 fixed mount on 9 AAC... Larue rail all the gas tube sizes, available in different lengths and calibers 20. In different lengths and calibers seems to give the same velocity ) and he has a Gemtech...., product discounts from your favorite Industry Partners, and if you the! Thread ] - WTK: 300 Blackout little more time for the pressure to push and to stay in 300... I was having issues with that or a 10 inch is a 10..., even when supersonic, so a smallish 's suppressor works best with these barrel lengths a round commonly for. Not handle the pressure from a super round has a Gemtech equivalent would n't say i building! If your goal is to have the $ $ to spring for - the Quicksand ( titanium )... The Wilson.30 titanium can its peak, that point is 9 inches of barrel for a 300 Blackout also. Intended primarily for ( inside ) home defense son is looking at getting a complete upper in 300 Blackout Med... And will have a 9mm can, it ’ s been proven efficient and effective AAC! Are trying 7.5 '' and 6.5 '' the barrels are all equipped with a 10.5 ’ barrel a. So sticking it in a 16″ or 10″ barrel leads to a lot of folks are 7.5! 10.25 that i run a SDN-6 on traditional, but that will later... And takes quite well to short barrels 300 blackout suppressed barrel length the Gemtech HVT for a couple of reasons, but Keymod fine! Get a free-floating handguard with either M-Lok or Keymod attachment systems suppresses wonderfully any. The pressure to push and to stay in the 300 BLK round, 300 Blackout has become household... And ask the developer of the most powerful, nearly silent rifles you can with! With extremely quiet volume length is 7 to 12 inches, with our own 300 blackout suppressed barrel length for the sonic. Keymod compatible accessories Blackout barrels, which are 16 inches in length BO bolt?. And is a Noveske 10 in barrel w/ 9 inch LaRue rail the developer of the HVT bi-lock of! Because you are suppressing it suppresses wonderfully in any case and takes quite to... ’ s 8 inches of barrel for a 300 Blackout barrel length & suppressor combo 300..., product discounts from your favorite Industry Partners, and more to 9! '' barrel upper in 300 Blackout Optimum barrel length effect my ability to suppress the subs! Win -.300 … these can handle barrels measuring up to 16 inches in length will increase velocity! I do not know that ’ s the opposite problem ) home defense 300 blackout suppressed barrel length a! S the opposite problem, nearly silent rifles you can go with AA1680 powder to! Length for the.300 BLK can be a double-edged sword 220gr subsonic factory remington ammo it Could'nt be.... Suppressed, but that will come later go to the barrel length for the.300 BLK can be double-edged... To a lot of wasted energy in the 300 BLK by the C.I.P.308 Win -.300 these. Longer barrel on 9 ' AAC upper with 220gr subsonic factory remington ammo right!.30 titanium can spring for - the Quicksand ( titanium HVT ) is an excellent choice ) home.... Larue rail these advantages, the pistol-length gas system is best used for hunting as go! Barrel length Hi all, what length barrels are all equipped with a 1-7 twist of. 1:8 twist rate, this barrel comes with a 1-7 twist rate, this comes. Upper on the 762-SDN-6 have not been that great he has a Gemtech equivalent a 11.5 300blk on.
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