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| Sun | CLOSED |
| Mon | Appointment only |
| Tue | 9 a.m.-5 p.m. |
| Wed | 9 a.m.-5 p.m. |
| Thu | 9 a.m.-5 p.m. |
| Fri | 9 a.m.-5 p.m. |
| Sat | 9 a.m.-5 p.m. |
Mfg Item #: 92CA38C
The 300 Series Lower Group features the Magpul MOE pistol grip, the CMMG Ripstock with 6-Position Enhanced Receiver Extension, and a Geissele Automatics SSA 2-Stage trigger. The Mk17 platform accepts Sig P320, Sig M17-style 9mm magazines and features a unique magazine release. NOTE: Requires a lower parts kit of your choosing to complete.