Rock River LAR15M 450 Bushmaster, 16″ Barrel, Black, Two Stage Trigger, 7rd

$1,390.00

Rock River arms is excited to offer a new AR-15 variant designed specifically to shoot the .450 Bushmaster cartridge. This particular model comes standard with a 16″ chrome moly barrel and a RRA Operator Brake. The receiver is made from forged aluminum with a hard coat anodized finish. A Rock River Arms 13″ Extended Lightweight free float rail features a full length picatinny rail and a M-LOK compatible system located at the 3, 6, and 9 o’clock positions. A carbine A2 pistol grip and 7 round Ar-15 .450 bushmaster magazine round out the list of features. This rifle features a black finish.


Rock River Arms 450B1542

Direct Gas Impingement Semi Automatic Rifle

.450 Bushmaster

16″ Chrome Moly Barrel

5/8×32 Thread Pitch

RRA Operator Muzzle Brake

Forged RRA LAR-15M Multi Caliber Marked Lower Receiver

Forged A4 Upper Receiver

Mid-Length Gas System

Low profile Gas Block

RRA Two Stage Trigger

RRA Winter Trigger Guard

Standard Charging Handle

RRA 13″ Extended Lightweight Free Float Hand Guard (M-LOK Compatible with Picatinny Top Rail)

RRA Operator Carbine Stock

RRA Overmolded A2 Grip

7 Rounds

Accepts Standard Pattern AR-15 Magazines (.450 Bushmaster)

1 MOA at 100 yards

Overall Weight 6.8lbs

Overall Length 37.5″

Matte Black Finish

Estimated shipping times are posted on the product information page under the title “Ships On Or Before:” please note that all lead-times are estimates.  For items in our warehouse, we usually ship within 3 business days.  For items only available at distribution or other sources, the ship time may be up to 10 business days.  For items only available at the manufacturer, the lead-time may be a few weeks or longer– depending on availability.

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We want you to be 100% satisfied with your purchase from Multi Gun Shop, therefore we offer no hassle returns.

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What about damaged/incorrect items?

  • If you received a damaged, defective, or incorrect item, Multi Gun Shop will ship you a replacement of the exact item upon receipt of the damaged or defective item. Multi Gun Shop will send you a return shipping label for the return.

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