Finish your 300 BLK AR build with the right buffer.
Getting supersonic and subsonic 300 Blackout loads to reliably cycle in your AR pistol requires dialing in your gas system and your buffer weight. This lightweight buffer kit includes a 3.0-ounce (Carbine) buffer that ensures low-power subsonic cartridges can provide reliable ejection and feeding, without making supersonics feel too "punchy."
300 Blackout Pistol Buffer Kit: What's Included
- Lightweight (3.0-ounce) buffer
- Recoil buffer spring
- Mil-spec buffer tube
- Padded tube cover
- Standard latch plate
- Standard castle nut
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
GunBuilders.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.