Sig Sauer SIG516 G3 Short Stroke Piston 5.56mm SBR 11.5" Barrel - 30 Rd

Sig Sauer SIG516 G3 Short Stroke Piston 5.56mm SBR 11.5" Barrel - 30 Rd

Experience the next generation of combat-proven reliability with the SIG Sauer SIG516 G3 SBR. Engineered for duty professionals, tactical teams, and demanding shooters, this 11.5-inch Short-Barreled Rifle pairs the clean, cool-running operation of SIG’s short-stroke gas piston system with the nimble handling required for close-quarters maneuvers and vehicle operations. Chambered in 5.56 NATO, the SIG516 G3 eliminates the carbon fouling and thermal buildup common to direct impingement platforms, delivering flawless cyclic performance across high-volume firing schedules and harsh environments.

At the forefront of modern carbine ergonomics, the SIG516 G3 features an innovative dual-charging architecture boasting both standard rear and non-reciprocating side charging handles for versatile weapon manipulation in any shooting posture. Tuned for precision and rapid control, it comes equipped with a 3-position adjustable gas regulator for seamless suppressed running, a crisp Matchlite Duo curved trigger, and reinforced steel inserts in critical high-wear contact points. Finished in a rugged hardcoat black anodizing and outfitted with a 6-position Magpul DT stock, the SIG516 G3 SBR sets a new standard for hard-use piston platforms.

Features

Short-Stroke Piston with 3-Position Gas System:
Runs cooler and cleaner than conventional direct-impingement systems, utilizing a 3-position adjustable gas valve optimized for smooth cycling across varying ammunition types and dedicated suppressed or unsuppressed shooting.

Dual Non-Reciprocating Charging Handles:
Equipped with both a traditional AR-style rear charging handle and a side non-reciprocating charging handle, providing intuitive, rapid clearance drills and flexible manipulations from awkward shooting positions.

Cold Hammer-Forged 11.5″ Barrel:
Engineered from cold hammer-forged steel with a 1:7 twist rate, offering extreme barrel longevity, match accuracy, and superior velocity retention in a compact SBR configuration.

Steel-Reinforced High-Wear Components:
Features strategic steel reinforcements embedded directly into primary contact and stress zones, dramatically reducing receiver wear and extending service life under sustained hard use.

Free-Floating M-LOK Handguard:
Provides a continuous top Picatinny rail and multiple planes of M-LOK mounting slots for tactical lights, lasers, and grips without inducing rail deflection or interfering with barrel harmonics.

Matchlite Duo Curved Trigger:
Delivers a smooth take-up, distinct wall, and crisp break with a tactile reset, facilitating rapid target transitions and precision shot placement.

Full Ambidextrous Controls:
Features completely mirrored lower receiver controls alongside an AR-compatible reduced-angle pistol grip and a collapsible 6-position Magpul DT stock for optimal weapon retention and shoulder transitions.

Specifications