JMac Customs Triangle Stock 8'' w/ Rise Black. This version of the SM stock/brace adapter is specifically made for the SAM7-SF. This stock adapter like the rest of the SM line will allow you to install all of our Arm Bar and Stocks as well as SIG style stocks. Cheek wield is adjustable by moving the stock/brace up or down on the adapter. Specifications for JMac Customs TS-8RP Triangle Stock 8'' w/ Rise: Manufacturer: JMac Customs Gun Make: Kalashnikov Stock/Brace Material: 17-4 Stainless Steel Color: Black Features of JMac Customs TS-8RP Triangle Stock 8'' w/ Rise Thread Protector Package Contents: JMac Customs TS-8RP Triangle Stock 8'' w/ Rise What firearm models does the manufacturer say JMac Customs TS-8RP Triangle Stock 8'' w/ Rise is compatible with? The manufacturer suggests that JMac Customs TS-8RP Triangle Stock 8'' w/ Rise is compatible with AKM Arsenal SAM7SFJMac Customs TS-8RP: TS-8RP Triangle Stock 8'' w/ Rise Black