QuarterCircle10 has released their latest in pistol caliber carbine AR-9 receivers with the new Blue Whistler Sig P320 pattern lower receiver.
KEY DETAILS:
- Available as a stripped receiver (with QC10 Proprietary parts) or with a lower parts kit included
- QC10 Blu Whistler (P320) Lower Receiver with Proprietary Parts (Ejector, Mag Catch and LRBHO Assembly)
- Engineered for 9mm, SIG Magazines
- Last Round Bolt Hold Open on Empty
- Billet 7075-T6 Aluminum
- Accepts Patented Universal 9MM Bolt
- Type III Hard Coat Anodizing
- Accepts Mil-spec Pistol/Carbine Buffer Tube Threaded Bolt Catch Pin
- 12 oz stripped weight
To learn more about QuarterCircle10. CLICK HERE