The LWRC IC-SPR Billet 5.56 NATO Rifle (LWRC part no. ICR5TG16SPRBT) is a semi-automatic AR-platform rifle from LWRC, built around billet-machined upper and lower receivers instead of standard forgings for a tighter, more refined fit. Chambered in 5.56 NATO, it pairs a 16-inch, spiral-fluted barrel with LWRC’s short-stroke gas piston operating system, which runs cooler and cleaner than a direct-impingement rifle over a long shooting session. An adjustable, two-position gas block lets the shooter tune the system for suppressed or unsuppressed use, and fully ambidextrous controls make the rifle equally at home for right- and left-handed shooters. Finished in grey with a black stock, it feeds from 30-round magazines and is built for shooters who want a premium, competition-grade AR without the added weight of a heavier forged platform.

Key Specifications

• Chambered in 5.56 NATO, running standard-pressure 5.56 NATO ammunition.
• Wears a 16-inch, spiral-fluted barrel for reduced weight without sacrificing rigidity.
• Cut with a 1:7-inch twist rate, stabilizing a wide range of 5.56 bullet weights.
• Feeds from 30-round magazines for 30+1 total capacity.
• Built on billet-machined upper and lower receivers for a tighter, more refined fit than standard forgings.
• Runs LWRC’s short-stroke gas piston operating system, keeping the action cooler and cleaner than direct impingement.
• Equipped with an adjustable, two-position gas block for tuning the system to suppressed or unsuppressed use.
• Features fully ambidextrous controls for right- and left-handed shooters alike.
• Runs a semi-automatic action for reliable cycling shot after shot.
• Finished in grey with a black stock for a distinct look beyond standard black-on-black builds.

Frequently Asked Questions

What is a short-stroke gas piston system? It’s LWRC’s operating system that keeps combustion gas out of the action, running cooler and cleaner than a direct-impingement AR.

What magazines does it use? Standard AR-15 magazines, including the 30-round magazine it ships with.

Is the gas system adjustable? Yes, a two-position adjustable gas block lets the shooter tune the rifle for suppressed or unsuppressed use.

Buy the LWRC IC-SPR Billet 5.56 NATO Rifle, 16-inch

Order the LWRC IC-SPR from our Lubbock, Texas gun shop for fast, insured shipping to your FFL. Its billet receivers and short-stroke gas piston system put it among the most refined AR rifles we carry for shooters who want premium performance in a 16-inch package.