Fits 180 series thru year 2007 rifles with standard barrel, standard and Ranch models (.223 only). Will not fit 2008 and later production rifles

Clamps directly to barrel for maximum stability and accuracy.

Enables use of Intermediate Eye Relief (IER) telescopes, reflex sights, and holographic weapon sights.

Co-witnesses with most low-mounted tubular reflex sights.

Includes 6 screws, clamp, Allen wrenches, and easy instructions.

Easy installation: no gunsmithing or alterations needed.

Made in USA

Construction: CNC machined from 2024 aluminum billet

Finish: Cerakote, graphite black

Rail: Picatinny style (18 slots)

Length: 10.3125″ (10 & 5/16)

Requires original factory standard barrel profile.

Model# M4-B