- The 308 receiver sets are compatible with DPMS LR-308 parts. DPMS magazine compatible set also works with Magpul 20LR Pmags. HK G3 magazine version works with G3 magazines exclusively.
- The upper reciever has a High-Profile (older DPMS style) top rail, this will match up with SI defense railed handguards, and others designed for the higher reciever rails.
SI Defense Billet Matched Upper and Lower Receiver Set LR-308 Generation IV for DPMS Magazine Matte
- Product #: 896542
- SI Defense #: SI 308 MS-GEN4