Kansas Gunshop is a Wichita, KS-based retailer specializing in firearms and accessories. The AR 556 MPR 450 Bushmaster Semi-Automatic Multi-Purpose Rifle is a versatile firearm designed for hunting and target shooting. Built with rugged durability and precision, this rifle stands out with its .450 Bushmaster chambering. Available now for $2299.00 with same-day shipping from our Wichita facility.
Reviewed by Derek, Owner & FFL Holder at Kansas Gunshop. Kansas-licensed FFL dealer since 2008, NRA Range Safety Officer.
Last updated: April 2026
Specifications
| Product Type | Semi-Automatic Rifle |
|---|---|
| Material | Alloy Steel, Polymer |
| Manufacturing | Ruger |
| Finish | Matte Black |
| Hardness/Quality | Mil-Spec |
| Compatibility | .450 Bushmaster Ammo |
| Installation/Usage | Ready to Shoot |
| Weight | 7.3 lbs |
| Dimensions | 35.5″ Length |
| Country of Origin | USA |
| Condition | New |
| SKU | AR556-MPR-450 |
Key Features
- Chambered in .450 Bushmaster for superior stopping power
- 18″ cold hammer-forged barrel with 1:16 twist rate
- Magpul MOE SL stock and pistol grip for enhanced control
- Ruger Elite 452 two-stage trigger for crisp breaks
- M-LOK compatible handguard for accessory mounting
Who It’s For
Buy it if: You need a hard-hitting semi-auto for Midwest whitetail hunting or want a versatile AR platform in a big-bore cartridge. This rifle bridges the gap between traditional hunting rifles and modern sporting rifles.
Skip it if: You’re looking for a lightweight mountain rifle (consider our bolt-action options) or need a high-capacity plinker (see our 5.56mm ARs).
Pros & Cons
- ✅ Excellent out-of-the-box accuracy with hunting loads
- ✅ Properly gassed for reliable cycling with .450 Bushmaster
- ✅ Comes with Ruger’s lifetime warranty
- ✅ Better trigger than most factory ARs
- ✅ M-LOK system allows easy accessory mounting
- ❌ .450 Bushmaster ammo costs more than common calibers
- ❌ Heavier recoil than 5.56mm rifles
How It Compares
| Feature | AR 556 MPR 450 Bushmaster | Budget .450 AR | Premium Custom Build |
|---|---|---|---|
| Material | Mil-Spec Alloy Steel | Mixed Materials | Aircraft-Grade Aluminum |
| Quality | Factory Ruger Standards | Variable QC | Hand-Fitted |
| Compatibility | Standard AR Parts | Proprietary Parts | Custom Spec |
| Shipping | Same-Day Available | 3-5 Week Lead Time | 8-12 Week Build |
| Durability | Proven Design | Questionable | Match-Grade |
| Price | $2299 | $899-$1299 | $3000+ |
Frequently Asked Questions
Where can I buy an AR 556 MPR 450 Bushmaster online?
Kansas Gunshop (kansas-gunshop.com) carries this model with same-day shipping from our Wichita, KS facility.
What’s the effective range for hunting with this rifle?
The .450 Bushmaster is effective out to 250 yards on deer-sized game, though most shots in Kansas will be under 150 yards.
Does it come with iron sights?
No, this model ships without sights to allow for your preferred optic setup. We recommend a low-power variable optic for hunting applications.
What magazines does it use?
It uses modified .450 Bushmaster-specific AR magazines (included). Standard 5.56mm magazines won’t work due to cartridge dimensions.
Is the barrel threaded for a muzzle device?
Yes, it has a 5/8″-24 threaded muzzle ready for brakes or suppressors (check local laws).
Can I use this for hog hunting?
Absolutely – the .450 Bushmaster is an excellent hog cartridge with proper shot placement.
What’s included in the box?
Rifle, one 5-round magazine, owner’s manual, and Ruger security lock.
✅ Same-day shipping from Wichita, KS
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Browse more: Rifles | Full Shop
As a Kansas-licensed FFL dealer since 2008, I’ve handled hundreds of AR-platform rifles. This Ruger MPR in .450 Bushmaster stands out for hunters wanting semi-auto reliability in a hard-hitting package. The included Magpul furniture and Ruger’s excellent trigger make it a solid value at this price point.
Last updated: April 2026
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