SOT Enhanced Chrome Bolt

$89.00

A bolt, a cam pin and a firing pin. One of them tells you it went back in the right way round.

Description

It carries the entire chamber pressure on seven lugs, cams through a quarter turn under load, and does it again every time the rifle cycles. Which is why the two things that matter about a bolt are what it is made from and whether anybody actually tested it — not the finish, and certainly not the logo.

This is the Microbest bolt: C158 steel, shot peened, then High Pressure Tested and Magnetic Particle Inspected individually, in a chrome finish. Microbest builds bolt carrier groups for the military and for other small arms manufacturers, and this is the same bolt that goes into their Super-Stake carrier groups, offered on its own for a builder who already has a carrier.

SKU: BLT-MBEST-C158-CHR-E

Full specifications, fitting notes and warnings: SOT Enhanced Chrome Bolt — product page.

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Additional information

Weight 0.3 lbs
Dimensions 5 × 3 × 1 in
Bolt steel

C158, shot peened

Testing

High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI), individually

Finish

Chrome

Bolt face

Mil-spec .378 — also runs 6mm MAX, .300 BLK and .350 Legend

Cam pin location

Standard pass-through hole. For the socket geometry see the HMB™ bolt

Supplied with

SOT arrow-index-marked cam pin (arrow point faces toward the bolt face) and a firing pin

Carrier compatibility

Any mil-spec bolt carrier. No proprietary carrier required

Extractor and springs

Fitted: extractor, extractor spring and ejector spring included

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