Pistol caliber carbines such as 9mm, .40 S&W, .45 ACP, and 10mm are a blast to shoot but can be tough on AR-15’s internal components….Add a suppressor, and the increased back pressure can cause tremendous damage, without properly tuning ytheir blowback system. The KVP 10 oz tungsten blowback buffer helps tame the destructive forces in suppressed and standard blowback AR15’s. Do yourself a favor and fine tune ytheir setup for the softest shooting PCC possible! Specifications for Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer: Manufacturer: Kaw Valley Precision Color: Stainless Steel Fabric/Material: Stainless Steel Gun Make: AR Platform Gun Model: AR-15 Gas System Length: Carbine Length Length: 4.125 in Weight: 10 oz Condition: New Caliber: .355 Caliber, .40 Caliber Cartridge: 9mm Luger, 10mm Auto Features of Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer Increases AR-15’s dwell time in blowback setups Quiets action (better for suppression) – 10.3-10.5 oz actual weight (tungsten weights can vary slightly) – 4 1/8 OAL (Buffer spacer is NOT required) Increases Reciprocating mass and weapon reliability Reduces wear on critical internal parts Reduces felt recoil Designed only for Carbine Length Stock and pistol kits Package Contents: Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer
6 reviews for Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer
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Sam –
Bought this for a 10mm AR build. Paired this with the Kaw extra power spring and the 10mm/40S&W bolt and its been flawless. The recoil is smooth and easy to control. This has quickly become my favorite rifle, and this buffer makes it fast, reliable, and easy to control.
Ryan Hidalgo –
I purchased this buffer after a lot of research into building/tuning a 9mm AR-platform pistol/carbine. Since they operate on direct blowback, it is important to adjust your total reciprocating mass to reduce felt recoil, ensure proper cycling, prevent undue wear on the system, and (most importantly) delay blowback long enough for pressure in the system to drop to safe levels. As such, I was specifically looking for an extended (~4 inch) buffer with internal sliding weights, and the KVP-10oz meets both criteria.The specific buffer I received weighed in at 10.25 oz which, combined with my 14.4 oz BCG, places it in the approximate "sweet spot" range for 9mm. Though the buffer is actually about 4-1/8" long, it still seemed to cycle properly and I had no FTFs, FTEs, issues with the last round bolt hold open (LRBHO), or any other malfunctions after testing in my build. The recoil was significantly less noticeable compared to when I was originally using a 5.4 oz buffer during my initial build/testing.All in all, I am very satisfied with the purchase and would recommend it to anybody else building an AR-9.
DragonSlayer –
The price and quality are top notch. Really made of stainless steel! And no burr's on any edges. Dead blow weights inside a big plus to mitigate bolt bounce
Question-asker –
Much smoother blowback and less muzzle rise compared to a standard 9mm buffer. Shifting weights inside also prevent bolt bounce and therefore out of battery detonations. I highly recommend this as an AR9 upgrade.
Rob –
This is what is need to make an AR 9 run properly. This works great!!
Ernest –
Perfect for recoil reduction. Would love a carbine length version. Great price too!!