C7/C8/M16E1 Stripped Upper Receiver With M4 Ramps - TNTE Sales Inc.
BROWNELLS AR-15 C7 STRIPPED UPPER RECEIVER
RECOIL - Checkout the Sleeper Carbine, a gun with groovy retro-style powered by modern parts under the hood: -Upper Receiver: Luth-AR C7 with M4 Feed Ramps: $150 -Lower Receiver: Echo93: $105 Trigger
C7 Upper. What would we do without Luth? : r/RetroAR