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The Takedown Tools
Odin Works Adjustable AR-15 Lite Buffer — 2.1–4.2 oz · Competition & Lightweight Builds
$69.99
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✓ 100% USA Made
✓ Odin Works
✓ Southern Idaho
✓ 2.1–4.2 oz Range
✓ 7 Adjustable Weights
✓ AR-15 Mil-Spec
✓ In Stock
🇺🇸
ODIN Works · Southern Idaho — 100% USA Made
Aluminum body · 7 interchangeable weights · Mil-spec AR-15 carbine tube compatible
Not every AR-15 build needs to go heavy. Competition shooters, lightweight builds, and overgassed rifles need a buffer solution that goes in the other direction — lighter, faster, and just as precisely tuned. The Odin Works Adjustable AR-15 Lite Buffer gives you a 2.1 to 4.2 oz range with 7 interchangeable weights — 3 aluminum, 3 stainless steel, and 1 tungsten — in an aluminum body built for speed-focused AR-15 builds. One buffer. Every configuration from featherweight competition to H2 equivalent. 100% USA made in Southern Idaho.
Weight System
3 Weight Types. 7 Combinations.
AL
Aluminum × 3
Lightest — competition, light loads, over-gassed systems
SS
Stainless × 3
Mid-weight — general purpose, standard mil-spec loads
W
Tungsten × 1
Heaviest — max weight for the lite platform at 4.2 oz
2.1 oz
Min — 3× AL
Lightest possible. Competition loads, over-gassed builds.
2.8 oz
2 AL + 1 SS
Light-medium. Standard competition carbine builds.
3.0 oz
Carbine Equiv.
Standard carbine weight. Mil-spec starting point.
3.5 oz
H1 Range
1 AL + 2 SS. Standard defensive and duty weight.
4.2 oz
Max — H2 Equiv.
2 SS + 1 Tungsten. Max lite weight. FRT minimum threshold.
Lite vs. Heavy — Which Do You Need?
The Lite buffer covers 2.1–4.2 oz — ideal for competition builds, lightweight AR-15s, overgassed rifles, and shooters who run lighter loads. The Heavy buffer covers 3.7–5.8 oz — required for forced reset triggers, suppressed builds, pistol-length gas, and high-pressure loads. If you're running an FRT like the Disruptor or ARC-Fire V2, you need the Heavy. If you're building a lightweight competition or 3-Gun rifle, the Lite is your answer.
Key Features
Built for Speed and Precision
- ◆Aluminum body — lightweight construction keeps your build as light as possible while still giving you tuning flexibility. Significantly lighter than the steel-body Heavy version.
- ◆7 interchangeable weights — 3 aluminum, 3 stainless steel, 1 tungsten. Choose any 3 for your configuration. Load any combination via the face-mounted set screw — no punches, no roll pins.
- ◆2.1 to 4.2 oz range — from the lightest competition weight all the way to H2 equivalent. Covers every lightweight AR-15 configuration in a single buffer body.
- ◆Competition and 3-Gun optimized — the 2.1 oz minimum weight allows your AR-15 to cycle light competition loads that would short-stroke in a heavier buffer. Run lighter ammo without reliability issues.
- ◆Over-gassed rifle solution — if your AR-15 runs rough, beats up brass, or has excessive muzzle rise with factory ammo, you're likely over-gassed. Dropping to a lighter buffer slows the cycle and smooths out the action.
- ◆Set screw adjustment — swap weights in seconds from the front of the buffer. No disassembly, no special tools. Change your configuration at the range between stages.
- ◆Mil-spec carbine tube compatible — drop-in installation in any standard mil-spec AR-15 carbine buffer tube. No modification required.
- ◆100% USA made — designed and manufactured by Odin Works in Southern Idaho.
Technical Specs
Full Breakdown
| Specification | Odin Works AR-15 Lite Buffer |
|---|---|
| Body Material | Aluminum |
| Weight Range | 2.1 oz – 4.2 oz |
| Weights Included | 3 Aluminum + 3 Stainless Steel + 1 Tungsten (7 Total) |
| Weights Loaded at Once | 3 of 7 — user selected |
| Adjustment Method | Face-mounted set screw — no tools required |
| Minimum Weight Config | 2.1 oz — 3× Aluminum |
| Maximum Weight Config | 4.2 oz — 2× Stainless + 1× Tungsten |
| Platform | AR-15 · Mil-Spec Carbine Buffer Tube |
| Installation | Drop-In · No Modification Required |
| Best Use | Competition, 3-Gun, Lightweight Builds, Over-Gassed Rifles |
| FRT Compatible | At max weight (4.2 oz) — minimum threshold only. Heavy buffer recommended for FRT builds. |
| Manufacturing | 100% USA Made · Southern Idaho |
| Warranty | Odin Works Lifetime Warranty |
Compatible Platforms
AR-15 Mil-Spec Carbine Tube
Competition Builds
3-Gun Builds
Lightweight AR Builds
Over-Gassed Systems
Light Load / Subsonic Applications
Odin Works AR-15 Lite Buffer — In Stock
100% USA Made · 2.1–4.2 oz · 7 Weights Included · Ships Fast
Why Odin Works
Southern Idaho
Every Odin Works buffer is designed and manufactured in Southern Idaho. American materials, American machines, American engineers.
2.1–4.2 oz Range
The lightest configurable buffer range available for AR-15 — covers everything from competition minimum weight to standard H2 equivalent.
Set Screw Simple
No roll pins. No punches. No disassembly. Unscrew the face-mounted set screw, swap your weights, done. Change configs between range sessions.
Lifetime Warranty
Odin Works backs every buffer with a lifetime warranty against defects. Buy once. Run forever.
Complete Your Build
Odin Works Heavy Buffer — FRT Builds
Odin Works Ambi Safety — 8 Colors
Odin Works HFRT — FRT Specific
Disruptor FRT — $299
ARC-Fire V2 FRT — $249.99
Best FRT Triggers 2026 Guide
ODIN Works® is a registered trademark of Odin Works, manufactured in Southern Idaho, USA. For forced reset trigger builds requiring H2+ buffer weight, see the Odin Works Adjustable Heavy Buffer. All forced reset triggers are federally legal following the May 2025 DOJ settlement. State restrictions may apply — see our state legal guide.
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