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A buffer might be one of the smallest parts in your AR-15, but it has an outsized say in how your rifle actually feels and functions. The Luth-AR CS-T2 H2 Carbine Buffer steps up from a standard carbine weight by loading two tungsten slugs and one steel slug into the body, bringing it to 4.60 oz. That extra mass slows the bolt carrier down just enough to calm a snappy, over-gassed carbine and give you a flatter, more controlled shooting experience.
Short-barreled and carbine-length gas systems tend to run hot and fast, which means more bolt bounce, more felt recoil, and more wear over time. A heavier buffer like this H2 helps settle all of that down. The tungsten slugs add density without changing the buffer's footprint, so it drops right into a standard carbine receiver extension with a carbine recoil spring. The payoff is smoother cycling, less muzzle rise, and quicker recovery between shots.
This is a favorite for builds that need a little taming. Folks running binary and forced-reset triggers often lean on an H2 to get consistent, reliable cycling, and it's a common fix for light primer strikes tied to buffer bounce. If your carbine feels harsh or you're chasing that last bit of reliability out of a shorter gas setup, dropping in an H2 is one of the easiest and most effective tweaks you can make.
Luth-AR is Randy Luth's shop, the same guy behind DPMS, so there's a long track record with the AR platform behind these parts. The CS-T2 is made in America and built to hold up to the pounding a buffer takes every trip to the range. It fits the vast majority of AR-15 style rifles chambered in .223 Remington and 5.56 NATO, making it a simple, worthwhile upgrade whether you're finishing a new build or fine-tuning one you've already got.
The H2 rating means this buffer is heavier than a standard carbine buffer thanks to its two tungsten slugs and one steel slug. That added mass slows down the bolt carrier group, which calms bolt bounce, reduces felt recoil, and helps your carbine cycle more reliably. It's especially useful on short or over-gassed setups that tend to run harsh.
Yes, an H2 buffer is a common pairing with binary and forced-reset triggers. The heavier weight helps time the cycle so those triggers run consistently and reliably. Many builders swap up to an H2 specifically to get smoother, more dependable function with these setups.
It does. This buffer is sized for a standard carbine receiver extension and pairs with a carbine recoil spring. It drops right in with no modifications on carbine-length or shorter gas-system AR-15s chambered in .223/5.56.
In many cases, yes. Light primer strikes are sometimes caused by buffer bounce, where the bolt doesn't fully seat before the hammer falls. A heavier H2 buffer helps settle the bolt for more consistent lockup and ignition, which is a common reason people reach for one.
| UPC | 859819007218 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | CS-T2 |
| Product Type | Buffer |
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