Rock River Arms LAR-15 5.56 NATO AR-15, 16 in Chrome-Moly Barrel, A4 Flat-Top, A2 Sights, Slide Fire BUMP STOCK, 3x 30-Round Mags
This Rock River Arms LAR-15 is a U.S.-made AR-15 platform rifle configured with a Slide Fire Solutions bump-fire stock. It features an A4-type flat-top upper with T-marked Picatinny rail, a 16-inch chrome-moly barrel marked “RRA 5.56 NATO 1/9 CM,” and classic A2 sighting gear. The rifle comes with three 30-round USGI-pattern magazines and retains a bright, excellent bore.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are visible handling and use marks on the rifle. A Slide Fire Solutions bump-fire stock is installed. Bump stocks are not legal in all states; please verify local regulations. Refer to the photos for a close look at the cosmetic marks.
What’s Included
- Rock River Arms LAR-15 rifle (5.56 NATO)
- Slide Fire Solutions bump-fire stock (installed)
- Slide Fire Solutions replacement pistol grip integrated with the stock kit (installed)
- Detachable A2-style carry handle rear sight (installed)
- Three 30-round USGI-pattern metal AR-15 magazines
The upper is an A4-type flat-top with a T-marked Picatinny rail (T4–T12 visible), forward assist, and ejection-port dust cover. Receiver rollmarks read Rock River Arms, Colona IL; model LAR-15; CAL. 5.56 MM, with selector markings SAFE/FIRE.
The 16-inch chrome-moly barrel is factory-marked “RRA 5.56 NATO 1/9 CM,” confirming 5.56 NATO chambering and a 1:9 twist. It is threaded and fitted with an A2-style flash suppressor.
Sighting components include an A2 front sight base with bayonet lug and standard front sling swivel, paired with a detachable A2-style carry handle rear sight. Furniture consists of two-piece ribbed polymer handguards with round vent holes, a delta ring, and a round handguard cap.
This rifle is customized with a Slide Fire Solutions SSAR-15–style bump-fire stock (BUMP STOCK) and the corresponding replacement grip integrated into the assembly. The stock is polymer and provides a 13.5-inch length of pull.
Capacity is 30+1 with standard AR-pattern magazines. Three USGI-pattern 30-round metal magazines are included, and the rifle wears a uniform matte black finish. Made in the United States.