Bushmaster QRC II PRO: Lightweight 5.56 Semi Auto Excellence

Lightweight control, reliable function, and a balanced recoil impulse—when a rifle does those three things well, it disappears in your hands and lets the mission take center stage.

BUSHMASTER QRC II PRO steps into that lane with a purpose-built feature set that reads like a range card: concise, clear, and ready to work.

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Why this rifle matters

At 5.9 pounds (without magazine), this carbine is built for speed, not strain. That matters whether you’re clearing a training bay, hiking ridgelines for a coyote set, or running a carbine course where fatigue makes cowards of good mechanics. The carbine-length gas system keeps the cycle brisk and predictable, while the 16-inch 4150 CMV barrel—treated with a salt bath nitride—handles heat and weather like a seasoned pro. The result is a durable, corrosion-resistant pipe that holds up to high round counts and rough seasons.

The pencil profile is the quiet hero here. It trims weight where it counts—out front—so the muzzle moves with intention, not inertia. Add the A2 birdcage and you’ve got flash mitigation that’s proven. If you run a suppressor, the 1/2×28 threads are ready, and the 1:7 twist stabilizes a wide spread of 5.56 NATO and .223 Rem projectiles, from lightweight training rounds to heavier defensive loads. It’s simple math: correct twist plus solid barrel steel equals consistent impacts.

Caliber and capability

Chambered in 5.56 NATO (.223 Rem compatible), the platform slots squarely into the American carbine standard for ammo availability, ballistic flexibility, and manageable recoil. From 55-grain ball at the range to 77-grain loads built for distance and terminal performance, the 1:7 twist rate gives the BUSHMASTER QRC II PRO real reach. That matters on the clock and in the field—trajectory predictability and energy delivery keep you honest when wind or distance complicate the shot.

Receivers and reliability

Forged 7075 receivers are the backbone: an XM15-E2S lower mated to an A4 flattop upper. You get rigidity for consistent lock-up and a stable base for optics. Pair that with the salt bath nitride bolt carrier group and an MPI-tested bolt, and you’re stacking reliability in environments that don’t care about your timeline. Nitride adds surface hardness and corrosion resistance, reducing friction and easing cleanup—small maintenance wins that compound over long cycles.

The trigger is mil-spec—predictable and serviceable. In a defensive or duty-style rifle, a consistent break that survives hard use beats a fragile feather every day. If you decide to upgrade later, the forged lower gives you a stable bed for that change without drama.

Ergonomics that keep up

Furniture matters because it’s the human interface. The B5 Bravo stock keeps the rear clean and secure with an anti-slip surface and cheek weld that doesn’t fight your optic height. The B5 Type 23 P-Grip sets your wrist at a natural angle with texturing that works in gloves or bare hands. The overall length runs 33 to 36.5 inches depending on stock position, short enough to navigate tight spaces without feeling cramped on the shoulder. When you shoulder the carbine quickly, the rifle disappears and the sights come to you—exactly how it should be.

Optics and attachments

The flattop receiver invites your choice of red dot, LPVO, or irons. Keep it simple with a 1-6x for general use, or run a rugged dot and magnifier if you favor speed inside 50 yards with optional reach. The A2 flash hider keeps blast reasonable for teammates or family on the line, and the pencil barrel makes every ounce you add up top a deliberate choice. In a world where ounces become pounds and pounds slow you down, the lighter front end is a tactical advantage.

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Mission profiles: range, field, and defense

Range work

The 5.9-pound weight and carbine gas make for fast strings and fast learning. It’s light enough to train all day without paying for it tomorrow. The nitride barrel takes the heat like a professional, and the 1:7 twist won’t choke on heavier bullets when you push past 100 yards.

Field use

On a hunt, the pencil barrel helps you move quiet and steady. You’ll appreciate the quick mount from sling to sight picture. The A2 flash hider keeps your night vision intact at dusk while the 16-inch length balances velocity with carry comfort.

Home and property defense

Light, strong, and controllable. The B5 furniture keeps your grip secure when adrenaline kicks in, and the forged receivers plus nitride BCG keep the gun cycling when it must. Reliability isn’t a feature—it’s the requirement.

Build quality and brand reputation

Bushmaster has miles on the odometer in the American carbine world. This build leans into that heritage: forged 7075 receivers for strength, nitride BCG and bolt for longevity, and a properly gassed 16-inch system designed to run. It ships with a Bushmaster aluminum magazine—sturdy and ready to go—and it’s made in the USA. The result is a rifle that feels familiar but refined, like a known route cleared of obstacles.

Value play

At $879.99, you’re getting a lightweight 5.56 Semi Auto with premium materials where they matter—4150 CMV, nitride treatments, forged receivers, and B5 furniture—without paying collector’s-item pricing. If you’re setting up your first serious carbine or adding a dependable work rifle to the rack, this hits the sweet spot of performance per dollar. It’s not about flashy extras—it’s about a rifle that runs.

Specs at a glance

• Caliber: 5.56 NATO (.223 Rem compatible)
• Barrel: 16-inch 4150 CMV, salt bath nitride, pencil profile
• Twist: 1:7; Threads: 1/2×28
• Gas System: Carbine length
• Receivers: 7075 forged XM15-E2S lower, 7075 forged A4 flattop upper
• BCG: Salt bath nitride; Bolt: MPI tested
• Furniture: B5 Bravo stock, B5 Type 23 P-Grip
• Muzzle Device: A2 birdcage
• Trigger: Mil-spec
• Weight: 5.9 lb (no mag); OAL: 33–36.5 inches
• Includes: Bushmaster aluminum magazine; Made in the USA
• Category: Semi Auto
• Price: $879.99

Setup tips from the field

Zero and ammo

Run a 50/200 zero with 55- or 62-grain loads for general use. If you plan to live with 69–77 grain bullets, reconfirm at distance and note the holdovers. The 1:7 twist is built to stabilize the heavy stuff; let it earn its keep.

Sling and light

Add a two-point sling and a compact white light—essentials for control and identification. The lighter front end keeps the rifle lively even as you kit it out.

Maintenance cadence

Nitride on the barrel and BCG simplifies care. Keep it lubricated, inspect the gas key and staking, and check your muzzle device for carbon lock if you’re swapping attachments regularly. Consistency beats complexity.

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Final notes

Some rifles are built to be babied. This isn’t one of them. The BUSHMASTER QRC II PRO is a practical, lightweight 5.56 that carries all day, runs hard, and keeps your focus on fundamentals—sight, press, follow-through. If you want a straightforward tool that performs without the drama, this is the move.

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People Also Ask

What makes this product stand out from competitors?

This product offers superior quality and innovative features that set it apart in the market. Its design focuses on both performance and reliability, making it a top choice for professionals and enthusiasts alike.

Is this product suitable for beginners?

Yes, this product is designed with user-friendly features that make it accessible to beginners while still offering advanced capabilities for experienced users.

What warranty or support is available?

The product comes with comprehensive warranty coverage and excellent customer support to ensure your satisfaction and peace of mind.

How does this compare to similar products in its price range?

This product offers exceptional value for its price point, providing features and quality that typically cost significantly more in comparable alternatives.

What maintenance is required?

Minimal maintenance is required thanks to the product’s durable construction and quality materials. Regular cleaning and occasional inspections will keep it performing optimally.