*EXCLUSIVE* CTW-PTW M4-M16 Series 440fps Advanced Cylinder Unit. M92 Just beside the firing button

Just beside the firing button is a safety slide to prevent misfires

Flap around zipper as a protective cover

Rail / Metal Barrel

Power may vary depends on other parts installed

Rank & Flag Patches

*EXCLUSIVE* CTW-PTW M4-M16 Series 440fps Advanced Cylinder Unit. M92 Just beside the firing buttonDescription: *EXCLUSIVE* CTW PTW M4 M16 Series 440fps Advanced Cylinder Unit. This CTW power upgraded cylinder unit is ONLY available here at HSA! These are custom build and tested here "In the House" by our Certified PTW Technician. Quantities are limited so GET Yours NOW! Specifications: Material: Aluminum Length 65mm Outer Diameter 25. 45mm Net Weight: 154. 6g 430 440 F. P. S. Compatible with CTW and PTW M4, M4 CQB, M16A2, M16A3 Training Weapon