Sionics Patrol Rifle Three XL 5.56 NATO 16" AR-15 Rifle

The Patrol Rifle Three XL features a 15 SIONICS M-LOK Rail with 5-Slot Rail Piece, 16 SIONICS Premium Nitride Barrel - Medium Contour, NP3 Treated M16 Bolt Carrier Group with use of Ned Christiansen's OCKS (Optimized Carrier Key Screws), and SIONICS Enhanced Mil-Spec Trigger. This Rifle is also equipped with an Ambidextrous Selector, Raptor Ambidextrous Charging Handle and SIONICS QD End Plate. Specifications: Caliber: 5.56mm NATO Upper Receiver: 7075 M4 Barrel: 16" Nitride Barrel - Medium Contour, 41V50, NATO Chamber, 1:8, Nitride, Air-Gauged, Radiograph and MP Inspected Gas System: Mid-Length, Direct-Impingement Muzzle Device: A2 Flash Suppressor Bolt Carrier: 8620 M16 Carrier - NP3 Coated with use of Ned Christiansen's OCKS (Optimized Carrier Key Screws) Bolt: Carpenter No.158, HP/MPI Tested, Black Insert and Sprinco 5-Coil Heavy Extractor Spring - NP3 Coated Lower Receiver: Forged 7075-T6 Aluminum Trigger: SIONICS Enhanced Mil-Spec Safety Selector: Ambidextrous Lower Receiver Par