SPR/MK-12 Barrels 18.1″: Criterion-SS

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.

Length	18.1"
Twist	1-7 Twist, 1-7.7 Twist
Gas System Length	MID Length, Intermediate Length, Rifle Length
Chamber Type	CLE, Wylde
Thread	1/2×28, 5/8×24
Finish	Polish(standard), Bead Blasted, Cerakote C-Series(cold cure)-Black
Matched Bolt	None, Add Matched Bolt, Customer Supplied

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

$340.00 – $460.00

Twist

Gas System Length

Chamber Type

Thread

Finish

Matched Bolt

Clear