F-1 Firearms receiver set, new
UDR-15-3G Style 2 matched set
Manufactured from high grade 7075-T6 billet aluminum
Scalloped top MIL-SPEC Picatinny rail
Oversized trigger guard
Front and rear take down pins included and installed
Screws included for bolt catch, receiver tensioning, take down pin detent and trigger adjustment
60 degree beveled magwell