KTactical Red Carbine Buffers are perfect for any custom AR build!
What We use H2 Buffers For
We use these H2 Buffers for carbine length 10.5″ pistol uppers as well as DPMS AR 308 builds equipped with an A5 length buffer tube.
A5 buffer tubes are a little longer than your standard carbine buffer tube and can be used to help increase reliability on AR 308 builds.
Our exact buffer setup is:
A5 Buffer Tube + 308 Heavy Recoil Spring + H2 Carbine Buffer
This setup has produced a very reliable AR 308 platform that shoots, feeds, and locks back on the last shot as intended. Our 20″ AR upper has a rifle length gas system, but we have also used this setup on carbine length gas systems.
It is generally recommended to have an adjustable gas block on your 308 build as they require some tuning before they are ready for the field!
Buffer Weights Explained
H1, H2, H3, what does it mean? These are different weight ratings for buffers.
The exact weights differ from one manufacturer to the next, but generally fall in a similar weight range.
H1 – 3.0oz : Mostly used for full length 16″ 556 Rifle builds
H2 – 4.3oz : Mostly used in shorter barrel builds, such as 10.5″ 556 builds, or whenever a heaver buffer is called for. Some AR 308 builds with an A5 buffer tube may shoot more reliability using an H2 buffer.
H3 – 5.4oz : Ideal for micro 556 AR builds (5″ – 7″ barrels) and can greatly help with fixing reliability.
