JMac Customs TS-8 for 4.5mm Folding AKs w/ 1913 Folding Mech Black TS-8P+RSA-4.5+FM-SM-1913. 5mm Folding AKs w/ 1913 Folding Mech then you've arrived at the right spot.. Formulated by using several of the most extremely strong and long lasting...