Receiver Parts

Aero Precision M4E1 5.56 Partial Upper Receiver w/ Atlas R-One Handguard - 16" Black

Andro Corp Industries AR-15 5.56 NATO Partial Upper Receiver Group - 10.3"

Rainier Arms RUC 5.56 NATO DI Complete Upper - 16"

Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 14.5" FDE

Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 10.5"

Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 12.5"

Rainier Arms RUC Pro MK2 5.56 NATO Partial Upper Receiver

Rainier Arms / Rellim Arms AR-15 300BLK Take Down Barrel Assembly - 8"

Rainier Arms RUC DI 300BLK Partial Upper Receiver - 10.7"

Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver

Sons of Liberty Gun Works M4-EXO3 5.56 AR-15 Upper - 10.5"

Sons of Liberty Gun Works M4-76 5.56 AR-15 Upper - 10.5"

Sons of Liberty Gun Works M4-89 5.56 NATO AR-15 Upper - 10.5"

Sons of Liberty Gun Works M4 Patrol SL 5.56 AR-15 Upper Receiver

Rainier Arms RUC DI 5.56 NATO Partial Upper Receiver

Rainier Arms RUC PRO Mk1 Riflespeed Partial Upper Receiver - 11.5"

Rainier Arms RUC PRO Mk1 5.56 NATO Riflespeed Partial Upper Receiver - 12"

Sons of Liberty Gun Works M4-89 5.56 AR-15 Upper - 16"

Angstadt Arms AR-15 5.56 Complete Upper Assembly - 16"

Sharps Bros AR-15/M4 .223 Wylde Complete Upper Receiver - 16"

Aero Precision M4E1 300BLK Complete Upper Receiver w/Atlas R-ONE Handguard - 8" Black