Armaspec SRS H2 Gen 4 Buffer Kit for AR-15 Mil-Spec
Armaspec
$108.89
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Armaspec
Armaspec SRS H2 Gen 4 Buffer Kit for AR-15 Mil-Spec
The Armaspec SRS H2 Gen 4 Buffer Kit delivers a complete, drop-in mil-spec buffer assembly for AR-15 platform rifles, combining a precision-engineered multi-stage recoil buffer system with every component needed to mount your stock and get back to shooting.
- SRS H2 buffer weighs 4.7 oz for smooth, reliable cycling across loads
- Gen 4 multi-stage recoil system reduces felt recoil and carrier bounce
- Mil-spec 7075-T6 aluminum 6-position buffer tube for maximum durability
- Includes steel castle nut and end plate — no extra hardware needed
- Fits all standard AR-15 pattern lower receivers with mil-spec dimensions
- Complete kit simplifies installation for builders and upgraders alike
Who This Is For
This kit is ideal for AR-15 owners building a new lower, replacing a worn-out buffer assembly, or seeking a noticeable reduction in recoil impulse over a standard carbine buffer setup. Whether you're a competition shooter looking for a softer-shooting rifle, a home builder completing a stripped lower, or a recreational shooter upgrading an existing mil-spec stock kit, the Armaspec SRS H2 Gen 4 offers a quality, all-in-one solution that installs with standard tools and no modifications.
Specifications
| Brand | Armaspec |
|---|---|
| Model | SRS H2 Gen 4 Buffer Kit |
| Buffer Weight | 4.7 oz (H2) |
| Buffer Type | Multi-Stage Recoil (SRS) |
| Buffer Tube | 6-Position Mil-Spec, 7075-T6 Aluminum |
| Hardware Included | Steel Castle Nut & End Plate |
| Compatibility | AR-15 Pattern, Mil-Spec Lower Receivers |
| Generation | Gen 4 |
| Country of Origin | USA |
Frequently Asked Questions
What makes the SRS H2 Gen 4 buffer different from a standard carbine buffer?
Unlike a traditional single-stage carbine buffer, the Armaspec SRS (Stealth Recoil Spring) H2 uses a multi-stage internal design that staggers the recoil impulse as the bolt carrier group travels rearward. This results in a noticeably softer, more controlled shooting experience, reduced carrier bounce, and improved reliability — especially with a wide variety of ammunition weights and suppressed configurations.
Will this kit work with my existing mil-spec stock?
Yes. The included 6-position buffer tube is built to true mil-spec dimensions, so it is fully compatible with any mil-spec AR-15 stock, including popular options from Magpul, BCM, Vltor, and many others. If your current stock is a commercial-spec fit, you will need a commercial-spec tube instead — this kit is specifically designed for mil-spec stocks only.
Is the H2 buffer weight appropriate for a standard mid-length or carbine-length gas system?
The H2 weight (4.7 oz) is heavier than a standard carbine buffer (3 oz) and is commonly used to tame over-gassed carbine-length systems or improve reliability with lighter 55-grain loads. It works well with both carbine and mid-length gas systems on 16" barrels. For pistol-length gas systems or suppressed builds, consult your gas port sizing and consider adjustable gas block pairing for optimal tuning.
