Rock River Arms LAR-15 A4 5.56 NATO 16 in Carbine with Quad-Rail, F-Marked Front Sight Base, 3x 30-Round Magazines
This Rock River Arms LAR-15 A4 is a 5.56 NATO AR-15 platform carbine with a 16-inch chrome-moly barrel, 1:9 RH twist, and a carbine-length gas system. It features a pinned F-marked front sight base, a threaded muzzle with an A2 birdcage flash suppressor, and a flat-top T-marked upper. This example is customized with a two-piece drop-in quad-rail, UTG rail covers, a polymer vertical foregrip. Three 30-round magazines are included.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are markings consistent with prior handling and use. The bore is bright and clean. Please review the photos for a close look at these areas.
What's Included
- 3x 30-round AR-15/STANAG magazines (USGI-style aluminum; one with a rubber 5.56 NATO magazine pull)
- Two-piece drop-in quad-rail handguard (installed)
- UTG polymer rail covers (installed)
- Polymer vertical foregrip (installed)
The LAR-15 A4 operates via a semi-automatic, direct-impingement system on the AR-15 platform. It uses aluminum receivers and an AR-15/STANAG magazine interface. The flat-top upper is T-marked (T2–T12) and includes a forward assist, shell deflector, and ejection-port cover.
The 16-inch chrome-moly steel barrel is threaded and fitted with an A2 birdcage flash suppressor. A carbine-length gas system and a pinned F-marked front sight base are standard, with a bayonet lug and a front sling swivel present.
This rifle is outfitted with an aftermarket two-piece drop-in quad-rail, UTG polymer rail covers, and a polymer vertical foregrip. The delta ring assembly is retained. Furniture includes a 6-position collapsible polymer stock and an additional sling loop at the butt, plus an RRA A2-style checkered polymer pistol grip.
Sighting and mounting surfaces include the fixed F-marked front sight base and a flat-top receiver rail with T-markings. No rear sight is installed.
Three 30-round magazines are included. These are USGI-style aluminum AR-15/STANAG pattern magazines, with one fitted with a rubber 5.56 NATO magazine pull.