*pistol frame not included*

This is the M4 Adjustable Stock with the Mono Rail. This is a standard, 6 position, M4 stock with the buffer tube mounted to the CCU using the adapter. The M4 Adapter comes with this stock and so is included in the price shown.

This Carbine Conversion Unit comes with a 15" Mono Rail on top, which provides an excellent sight radius for iron sights. It also has enough space for a red dot sight to co-witness. Moreover, the unit has a handguard that features 3 M-LOK slots at the bottom, offering additional versatility.