Odin Works Adjustable AR-10 Buffer — 3.45–4.65 oz · .308 Win & 7.62x51 Builds
The AR-10 is a fundamentally different cycling equation than the AR-15 — more mass, more gas pressure, more BCG energy to manage. Getting the buffer weight right on a .308 Win or 7.62x51 AR-10 is critical for reliability, brass life, and felt recoil. The Odin Works Adjustable AR-10 Buffer gives you 3 interchangeable weights — aluminum, stainless steel, and tungsten — covering a 3.45 to 4.65 oz range in a stainless steel body built specifically for the large-frame AR platform. Stop guessing. Start tuning. 100% USA made in Southern Idaho.
3-Weight System
Precision Tuning for the Large-Frame AR
The AR-10 buffer includes 3 weights — one of each material — covering the precise range the .308/7.62 platform demands. Load any combination of the 3 included weights to dial in your exact configuration.
The AR-10 platform runs at significantly higher bolt thrust and gas pressure than the AR-15. An AR-10 that's running too light a buffer will slam the BCG rearward aggressively — beating up your receiver, your bolt, and your brass. Too heavy and it short-strokes. The Odin Works adjustable system lets you find the exact weight your specific AR-10 needs based on your gas system, barrel length, and ammunition — without buying three different fixed-weight buffers to get there.
Key Features
Large-Frame AR. Precisely Tuned.
- ◆Stainless steel body — heavy-duty construction built for the higher bolt thrust and cycling energy of the AR-10 / .308 platform. More durable than aluminum for large-frame applications.
- ◆3 interchangeable weights — aluminum (lightest), stainless steel (mid), tungsten (heaviest). One of each, giving you precise control across the 3.45–4.65 oz range.
- ◆3.45 to 4.65 oz range — covers the full practical buffer weight range for AR-10 and .308 builds. Whether you're running a 16" mid-length or a 20" rifle-length gas system, the Odin Works adjustable covers it.
- ◆Face-mounted set screw adjustment — swap weights from the front without punching out roll pins or disassembling the buffer. Change your configuration at the range in seconds.
- ◆Compatible with .308 Win, 7.62x51 NATO, and other AR-10 platform calibers — fits standard AR-10 rifle-length buffer tubes.
- ◆Recoil management — properly matched buffer weight reduces felt recoil and muzzle rise on the AR-10 platform significantly. Faster follow-up shots, better brass retention, longer component life.
- ◆100% USA made — designed and manufactured by Odin Works in Southern Idaho. Lifetime warranty.
Technical Specs
Full Breakdown
| Specification | Odin Works AR-10 Buffer |
|---|---|
| Body Material | Stainless Steel |
| Weight Range | 3.45 oz – 4.65 oz |
| Weights Included | 1 Aluminum + 1 Stainless Steel + 1 Tungsten (3 Total) |
| Minimum Weight Config | 3.45 oz |
| Maximum Weight Config | 4.65 oz |
| Adjustment Method | Face-mounted set screw — no tools required |
| Platform | AR-10 · .308 Win · 7.62x51 NATO · Rifle-Length Buffer Tube |
| Dimensions | 1.35 × 3.80 × 8.45 inches |
| Installation | Drop-In · AR-10 Rifle-Length Tube |
| Manufacturing | 100% USA Made · Southern Idaho |
| Warranty | Odin Works Lifetime Warranty |
Related Products
ODIN Works® is a registered trademark of Odin Works, manufactured in Southern Idaho, USA. Compatible with AR-10 rifle-length buffer tubes. All forced reset triggers are federally legal following the May 2025 DOJ settlement. State restrictions may apply — see our state legal guide.
Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
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We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.