MAK2 AK to M4 Folding Stock Adapter Upgrade of the original AK stock
US Machinegun: 6 Position Side Folding (M4) Stock with Adapter for Yugo M92/M85, AK-47 PAP YUGO /M92/M85 NP/YUGO / CENTURY ARMS / ZASTAVA PISTOL UPGRADES, YGO-SF6P
AK Folding Stock Tube - VISM
Leapers UTG AK47 Side Folding Stock Adaptor | 4.1 Star Rating Free Shipping over $49!
Underfolder stock adapter | TDI
SIG Stock Adapter for AK Rifles by JMac Customs -The Firearm Blog