Details
Details
The LMT Defense Standard Mil-Spec AR-15 Bolt Assembly features a phosphate finish, pre-installed gas rings, and a proper black extractor insert with Crane O-ring. This bolt is magnetic particle inspected and high pressure tested, and clearly marked “MP” to verify its quality. Whether you're upgrading your AR-15 BCG or need a high-quality spare part, the Lewis Machine & Tool bolt assembly is a great choice.
Features:
- MIL-SPEC carpenter no. 158 steel (bolt)
- High pressure tested and magnetic particle inspected
- Pre-installed gas rings
- Tool steel extractor
- Black extractor insert
- MIL-SPEC crane O-ring
- Phosphate finish
Specifications
Bolt FinishManganese Phosphate
Bolt MaterialCarpenter 158 Steel
BrandLewis Machine & Tool
Caliber Gauge5.56 NATO
High Pressure TestedYes
Magnetic Particle InspectYes
California Prop 65 warning
WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.
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