Madbull M4 CQB 7-Inch Outer Barrel map controlled 40 round capacity with extended

40 round capacity with extended follower to ensure ever round is fed into gun

The LM4 RIS PTR buffer tube has the same diameter of a MilSpec Stock which allows operators to customize to their weapon configuration

Overall dimension: 10"H x 26"W x 12"D

Medium: 32" ~ 34" +- 2"

and 9 o'clock positions allow for mounting of your favorite M-LOK accessories

Madbull M4 CQB 7-Inch Outer Barrel map controlled 40 round capacity with extended~1cm length adjustable. Fits most M4 AEG receivers in the market. 2" screws to lock the adjustable parts. This barrel is for extreme short CQB setups, features front sight pin groovesGreat if you want to really shorten your M4 for CQB! Note: the entire barrel including chamber section is 7" long.