CMMG Buffer Assembly H3
$52.45
The CMMG AR15 H3 Buffer Assembly is the heaviest carbine buffer at 5.4 oz, designed to significantly reduce felt recoil and improve ejection consistency. Ideal for tuning your rifle, this buffer allows for incremental adjustments to ensure optimal performance without compromising reliability. Backed by CMMG’s Lifetime Quality Guarantee, it’s a solid choice for serious shooters looking to enhance their setup.
Out of stock
CMMG AR15 H3 Buffer Assembly is the heaviest carbine buffer. Heavier buffers can be used to reduce felt recoil and improve erratic case ejection. It is recommended when tuning a rifle to step up buffer weights incrementally as too heavy of a buffer can affect function.
H3 Buffer weight: 5.4 oz
All CMMG products come with their Lifetime Quality Guarantee.
| Manufacturer | Cmmg Inc. |
|---|
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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