SPR/MK-12 Barrels 18.1″: Criterion-SS

$340.00$460.00

Length          18.1″
Caliber         .223/5.56
Gas Block    .750

Clear

Description

Special Purpose Rifle Contour Barrel.
M4 Feed Ramps come standard. 1:7 or 1:7.7 twist

This barrel comes with M4 Feed Ramps, MID Length gas system, 1/2-28 threaded muzzle, and the proper OPS, Inc. muzzle contour for OPS, Inc. collar.

Chamber type and Finish is your Choice.

 

Additional information

Length

Twist

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Gas System Length

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Chamber Type

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Thread

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Finish

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Matched Bolt

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