L.A.R. Manufacturing GRIZZLY-15 .450 Bushmaster AR-15, 16-inch, Free-Float Handguard, Fixed A2 Stock
This L.A.R. Manufacturing GRIZZLY-15 is a .450 Bushmaster AR-15 built in the USA with a 16-inch, medium-profile barrel and a direct impingement action. It features a flat-top upper with Picatinny rail, a free-float knurled aluminum handguard, and a clamp-on railed gas block. The model line has since been discontinued, adding interest for buyers who value discontinued AR variants from LAR.
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 Details: This firearm is in solid functional shape. Scratches and blemishes are present on the exterior surfaces.
What's Included
- 1x Magpul PMAG 30 polymer STANAG-pattern magazine body (marked "PMAG 30" and "5.56x45"); in .450 Bushmaster these typically accept about 9–10 rounds single-stack; capacity unconfirmed
- Detachable sling swivel installed on the gas block lower Picatinny rail
Chambered in .450 Bushmaster with an assumed 9–10-round magazine capacity using the included PMAG 30 body (unconfirmed), this GRIZZLY-15 pairs a semi-automatic, direct impingement action with AR-15 familiarity. The lower is marked "MOD. GRIZZLY-15" and "CAL. MULTI" with the LAR grizzly logo and "LAR MFG. WEST JORDAN, UT.
U.S.A." The upper is marked ".450 BUSHMASTER" with a small snake motif. LAR was later absorbed by Remington/Freedom Group, and the GRIZZLY-15 line is discontinued.
The 16-inch medium-profile barrel uses a 1:24 twist appropriate for .450 Bushmaster loads and is threaded, fitted with a single-port muzzle brake. The bore is clean and bright with sharp rifling, aligning with the excellent bore condition noted.
A flat-top upper with a Picatinny rail and forward assist provides a solid receiver setup. The free-float knurled aluminum handguard enhances rigidity and clearance around the barrel. Up front, a clamp-on railed gas block offers Picatinny sections at the 12, 3, 6, and 9 o'clock positions for mounting compatible accessories.
The rifle wears a fixed A2 stock with a rifle-length receiver extension and a 13.5-inch length of pull, paired with an A2-style pistol grip. It utilizes the standard STANAG/AR-15 magazine interface and is finished in matte black across the receivers and furniture.