JMac Customs SS-RP Skeleton Stock w/Rubber Butt Pad 9in. 2x Integrated QD Sling Socket Drilled and tapped for optional cheek risers Compatible with JMAC & SIG folding mechanisms Only 5.1oz without folding Mech Specifications for JMac Customs SS-9RP Skeleton Stock w/Rubber Butt Pad: Manufacturer: JMac Customs Gun Model: AKM Weight: 5.1 oz Length: 9 in Package Contents: JMac Customs SS-9RP Skeleton Stock w/Rubber Butt Pad What firearm models does the manufacturer say JMac Customs SS-9RP Skeleton Stock w/Rubber Butt Pad is compatible with? The manufacturer says that JMac Customs SS-9RP Skeleton Stock w/Rubber Butt Pad is compatible with AKMJMac Customs SS-9RP: SS-RP Skeleton Stock w/Rubber Butt Pad 9in