Magpul 370 ACS™ Carbine Stock – Mil-Spec UNDER ARMOUR Installs easily with no gunsmithing

Installs easily with no gunsmithing required*

along with the best materials for their applications

IPX7 waterproof to 1 meter for 30 minutes

0 get ready to confidently meet the needs of military and law enforcement as well as any outdoor enthusiast

featuring tool-less length of pull and cheek piece height adjustment

Magpul 370 ACS™ Carbine Stock – Mil-Spec UNDER ARMOUR Installs easily with no gunsmithingThe Magpul ACS (Adaptable Carbine Storage) Mil Spec Model is a drop in replacement buttstock for AR15 M4 carbines using mil spec sized receiver extension tubes. Dual, rear accessible, water resistant battery storage tubes and an integral storage compartment in the butt of the stock provides multiple storage options. Similar to the Magpul CTR, the ACS also features an anti snag release latch to prevent accidental activation along with a supplemental