This barrel comes standard with M4 Feed Ramps, MID 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.
Please Note, barrels are finished to your specs after you order them. Currently, we are at about 3-4 weeks turn around for Recon barrels. We do hit delays from time to time and it may take an additional week.
If you want this barrel made in a different length, please call our shop and we will work it out.