SOT Enhanced Super-Stake Bolt Carrier Group

$215.00

The stake is the whole point. So we mark it, and you can see it has not moved.

Description

Not the finish, not the logo — the staking. Two screws hold the gas key to the carrier, and those two screws sit directly in the path of the highest-pressure gas in the rifle. If they back out, gas escapes instead of driving the carrier rearward, and the rifle short-strokes, fails to extract or stops altogether. Everything else on a BCG is a preference. The stake is a failure point.

Microbest builds bolt carrier groups for the military and for other small arms manufacturers, and their standard staking is entirely serviceable. The Super-Stake is what happens when that step is taken off the production line and done by hand: each gas key staked individually by Phillip Kimm of Bexar Arms, with OCKS premium carrier key screws, then checked one at a time for mil-spec opening and optimum alignment.

SKU: BCG-MBEST-SUPSTK-CHR-E

Full specifications, fitting notes and warnings: SOT Enhanced Super-Stake Bolt Carrier Group — 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 1.0 lbs
Dimensions 9 × 3 × 2 in
Manufacturer part number

MBEST-BCG-556-CHR-ACP-SUPSTK

Carrier

8620 tool steel, full-auto M16 cut

Bolt

C158 steel, shot peened, High Pressure Tested, Magnetic Particle Inspected

Gas key

4130 steel, phosphate. OCKS carrier key screws by Michiguns, hand staked heavy duty by Bexar Arms. Mil-spec opening verified, optimum alignment checked

Extractor

4140 steel, phosphate, black extractor insert

Springs

Sprinco chrome silicon 5-coil extractor spring · Sprinco chrome silicon ejector spring

Finish

All chrome except phosphate gas key and extractor

Weight

11.6 oz

Enhanced adds

SOT arrow-index-marked cam pin (arrow point faces toward the bolt face) and index-marked gas key (single engraved line across the key and both screw heads)

Compatibility

Mil-spec AR-15 / M4 upper receivers. 5.56 mm NATO, 6mm MAX, .300 BLK and .350 Legend share this bolt face

Reviews

There are no reviews yet.

Be the first to review “SOT Enhanced Super-Stake Bolt Carrier Group”

Your email address will not be published. Required fields are marked *