Magpul STR Carbine Stock (Mil Spec) - FDE Pistol Hop-Up Rubbers Machined from a solid aircraft

Machined from a solid aircraft aluminum block with tight tolerances to achieve the most accuracy

Lens caps keep all lenses protected when not in use (remove when in use)

so any standard M4 AEG magazine can be used

TR16 and CM16 MK18 models from G&G

Magpul STR Carbine Stock (Mil Spec) - FDE Pistol Hop-Up Rubbers Machined from a solid aircraftThe Magpul STR (Storage Type Restricted) Carbine Stock Mil Spec is a drop in replacement buttstock for AR15 M4 carbines using Mil Spec sized receiver extension tubes. A storage capable version of the CTR, the STR has improved cheek weld and two water resistant battery tubes on a compact, reinforced polymer A frame design. A shielded operation lever and supplemental friction locking system prevent accidental operation and minimize excessive stock