Built using dimensions from the original Colt print and aesthetic geometry from an actual MAC-V-SOG XM177-E2. Manufactured from 17-4 SS, weighing 6.8 ounces per set of linear compensator and Grenade ring, the Griffin XM Linear comp is an actual functional muzzle device, not a slug of bar stock with a hole in the middle that resembles the XM Moderator. Per NFA we built the XM Linear Comp as a linear compensator, so the baffling specific to the original part is not present and the XM Linear comp is designed new from the ground up as a functional retro muzzle device for your retro builds.
You may purchase the Compensator as a standalone item, or add on the optional grenade ring for +$25.00 ($45 value).
This product requires an A1 Armorers tool, Griffin Armorers tool, or thin 5/8″ wrench for installation. Torque to 30-35ft lbs and visually check alignment prior to firing. Pictured is a 12.37″ barrel 16.19″ non NFA pinned and welded build on a Griffin Armament XM Linear comp.
Features:
- XM177E1/E2 Retro look
- Functional Linear Compensator w/ Optional Grenade Ring
- 17-4 SS Billet Machined
- 6.3 oz weight (Comp Only) 6.8 oz weight (w/ Grenade Ring)
- Plasma Nitride finish for original black look that won’t turn brown with normal use
- Blueprint specification grenade ring
- 4.69″ OAL w/grenade ring 4.323″ W/O Grenade ring
Additional information
| Weight | 6.5 oz |
|---|---|
| Dimensions | 1 × 1 × 4.5 in |
| Caliber |
5.56mm (.223) |
| Thread Pitch |
1/2×28 |
| Attachment System |
Direct Thread |
| Choose Kit |
Linear Comp & Grenade Ring Bundle, Linear Comp ONLY, Grenade Ring ONLY |




