Description
The Bushmaster ACR Rifle 450 Bushmaster, 18.5″ Barrel, Brake, 7-Position Folding/Collapsible Stock, 5rd Mag is a modern, modular battle rifle chambered in the hard-hitting 450 Bushmaster cartridge. It’s designed for versatility, offering a folding stock, adjustable ergonomics, and a brake-tamed 18.5-inch barrel, making it a potent tool for hunting, defense, or tactical use where intermediate power is required.
Key Features
- 450 Bushmaster Chambering: Delivers heavy .45-caliber energy for decisive stopping power on game or in defensive scenarios.
- Folding & Collapsing Stock: A 7-position collapsible stock that also folds to the side for compact storage and transport.
- Modular Design: The ACR platform allows for quick changes to barrels, handguards, and stocks to fit the mission.
- Muzzle Brake: Factory-installed brake mitigates the substantial recoil of the 450 Bushmaster round, enabling faster follow-up shots.
- Ambidextrous Controls: Includes ambidextrous safety selector and magazine release for left- or right-handed shooters.
Specifications & Details
| Caliber | 450 Bushmaster |
| Barrel Length | 18.5 inches |
| Overall Length (Stock Extended) | Approx. 35.5 inches |
| Weight (Unloaded) | Approx. 8.2 lbs |
| Magazine Capacity | 5 Rounds (Included) |
| Stock | 7-Position Folding/Collapsible |
This rifle is built on a proven, fully ambidextrous platform that accepts standard AR-15 style fire control groups, meaning many aftermarket triggers are drop-in ready with no gunsmithing required. The 18.5-inch barrel is the optimal length for the 450 Bushmaster, balancing velocity and maneuverability, especially in dense brush or tight quarters. At a weight of roughly 8.2 pounds unloaded, it’s substantial enough to soak up recoil but not burdensome to carry. The included 5-round magazine is compliant for hunting in many states, and the rifle is available at firearms-missouri.com for Missouri residents and nationwide.
Who This Rifle Is For
This is for the shooter who needs a single, adaptable rifle to cover multiple roles. When it comes to hunting medium to large game in Missouri’s woods where straight-wall cartridges are mandated, the 450 Bushmaster has the authority. For a homestead defense firearm that can reach out with authority beyond typical shotgun or pistol range, this configuration makes sense. It’s also for the enthusiast who appreciates a modern, modular tactical platform but wants more punch than 5.56 NATO. The price point of $2819.99 reflects its position as a premium, do-it-all rifle built for serious use.
Pros & Cons
Pros: Exceptional modularity and ergonomic adjustment; potent cartridge suitable for hunting and defense; recoil is well-managed by the brake and rifle weight; folding stock offers great storage and vehicle options; ambidextrous from the factory.
Cons: The 450 Bushmaster ammunition is more expensive and less common than .223/5.56; the platform has fewer aftermarket support options than the AR-15; at nearly 8.5 lbs loaded, it’s not a lightweight; the 5-round magazine capacity is limited for some tactical applications. That said, its versatility often outweighs these trade-offs.
Frequently Asked Questions
Q: Is this rifle compatible with standard AR-15 parts?
A: Not entirely. While it uses a familiar AR-15 style fire control group (trigger, hammer, disconnector) and some magazines are adaptable, the upper/lower receivers, bolt carrier group, handguard, and stock system are proprietary to the ACR platform. Think of it as an evolution, not a direct copy.
Q: Can I use 5.56 NATO uppers or barrels on this lower receiver?
A: No. The Bushmaster ACR lower receiver for 450 Bushmaster is specifically designed for that cartridge’s larger magazine well and different bolt face. You cannot simply swap to a 5.56 NATO upper. However, Bushmaster does offer complete uppers in other calibers like 5.56mm and .300 BLK that are designed to work with the ACR lower with a quick change.
Q: What is the effective range of the 450 Bushmaster from an 18.5″ barrel?
A: For hunting purposes, most consider 250 yards a reliable maximum on deer-sized game, thanks to the cartridge’s rapid energy drop-off. For tactical or defensive use on man-sized targets, its flat trajectory and retained energy make it effective out to 300 yards, though mastering the holdover is key beyond 200. The 18.5-inch barrel helps maximize velocity within a handy package.
Ready to configure a modern rifle for heavy-duty tasks? This Bushmaster ACR in 450 Bushmaster ships to Missouri and compliant US states.
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