8-inch Armbar, Folding Buttplate & JMac's 1913 Folding Mech - not assembled Lightweight and Rigid! Modular Design - Brace/Stock with many mounting options Integrated QD Sling Socket 8"" Length 7075 T6 Aluminum Hard-Coat Anodized This buttplate mounts to the end of JMAC Arm Bars Folds to prevent snagging while pulling from a bag Folds clear of drum mags 7075 T6 Aluminum Hard-coat Anodize Includes Mounting Hardware - Pin and Clip JMac 1913 folding mechanism Mfg: Jmac Customs