The SIG516 G3 blends modern enhancements with a proven, battle-tested design. Inside the rifle, a short-stroke piston with an adjustable gas system keeps flawless operation with the ability to tune the gas settings. Featuring a cold hammer forged barrel; rear and side non-reciprocating charging handle allows the rifle to be easily operated in any manner; steel-reinforced components for high-wear areas (cam path and feed ramp); fully ambidextrous controls, including the bolt catch, magazine catch, safety and charging handle; SIG Matchlite DUO curved trigger; SIG flash hider compensator and a free-floating M-LOK handguard.
Series G3
Model 516
Caliber 5.56 NATO
Barrel Length Range 16" to 16.99"
Gun Platform AR Style
Operating System Gas Piston
Stock Finish Group Black
Capacity 30+1
Stock Material Polymer
Action Semi-Auto
OAL 32.60"-36"
Hand Ambidextrous
Sights None
Barrel Finish Black
Barrel Material Cold Hammer Forged Steel
Muzzle Flash Hider
Twist 1:7"
Receiver Description Picatinny Rail
Magazine Type AR-15
Grips AR Compatible Reduced Angle
Handguards M-LOK
Height 7.90 "
Receiver Material Aluminum
Thread Pattern 1 / 2"x28
Width 3.30"
Stock Description Magpul DT
Barrel Description Threaded
Barrel Length 16"
Max Capacity 30
Receiver Finish Bronze Cerakote
Trigger Matchlite Duo Curved
Weight 8 lbs
Stock Finish Black