Obsidian Arms Pivot Pin Detent Tool AR-308
Master AR-308 detent installs—no flying springs, no frustration.
Installing pivot pin detents on AR-10/AR-308 rifles can be one of the most frustrating steps in any build. The Obsidian Arms Pivot Pin Detent Tool solves this problem with a precise, easy-to-use solution that dramatically simplifies the process—especially on large-frame platforms.
Machined from 4140 alloy steel, heat-treated for strength, and coated with a QPQ rust-resistant finish, this tool allows for controlled, repeatable detent installation without the risk of launching small parts across your workbench. Whether you’re a seasoned armorer or a first-time builder, this USA-made tool ensures smoother, safer builds—and it’s backed by a lifetime warranty for peace of mind.
Features
- Specifically designed for AR-10 / AR-308 lower receivers
- 4140 alloy steel, heat-treated for strength and wear resistance
- QPQ (quench-polish-quench) finish for corrosion protection
- Prevents lost detents and damage to detent springs
- Made in the USA and backed by a lifetime warranty
Specifications
- Compatibility: AR-10 / AR-308 Lower Receivers
- Material: 4140 Heat-Treated Alloy Steel
- Finish: QPQ (Quench Polish Quench)
| Weight | 2 oz |
|---|---|
| MPN | OA-PPDT-308 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
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