Ruger AR556 MPR 450BM 18.6" 5rd Rifle

Regular Price: $1,099.00
Our Price: $819.00
SKU: RUG-8522
MPN: 8522
UPC: 736676085224
Out of stock
as of 12/01/2021 12:32PM CST

Store Inventory
Available OnlineOut of stock
Fountain Valley, CAOut of stock
The Colony, TXOut of stock

Please check your local/state laws prior to ordering
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Inter-Store Transfer

If this item is out of stock at your local RifleGear but available at our other location, no problem. Just place your order and select In-Store Pickup as the shipping method. As long as the item is legal in your location, we will transfer the item for you. You will be notified by e-mail when your item arrives.

The Ruger SR556 MPR is now offered in 450 Bushmaster. The bolt is specially machined with a high strength superalloy, which makes it 50% stronger and with tapered lugs to support the 450 BM cartridge. The Ruger Elite 452 2-stage trigger offers a crisp 4.5 pull with 30% faster lock time. A cold hammer forged 4140 chrome-moly with 5R rifling allows exceptional accuracy with superior longevity.

Caliber 450 Bushmaster
Capacity 5 Rounds
Furniture Magpul SL Stock, MOE Pistol grip
Finish Black Anodize
Handguard Free Float MLOK
Sights None
Barrel Length 18.63"
Weight 7.4 lbs.
Thread Pattern 11/16" - 24
Overall Length

35.60" - 38.90"

Grooves 5
Length of Pull 11.10" - 14.40"
Twist 1:16" RH

Please check your local/state laws prior to ordering

Important note about our photos
While we make every effort to ensure that our product photos are accurate, manufacturers occasionally change the design of components such as triggers, sights, or magazines without notice. Also, modifications to the firearm or component may be required in order to meet specific state compliance requirements. While we make every effort to accurately describe and illustrate the item you are going to receive, there may be visual differences on various components that do not affect functionality.

Federal law requires that you be 21 years of age or older to purchase a handgun, frame or receiver. To purchase a shotgun or rifle, you must be 18 years of age or older. 18 U.S.C. Section 922(b)(1).

As required by federal law, this item may only be shipped to a dealer with a valid Federal Firearms License. If you do not specify the name and shipping address of your dealer, your order will be delayed.
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California Residents
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to


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