BUSHMASTER® GOREADY™ QRC® II LTW KIT – 10RD

The Volunteer State is known for rugged independence and practical preparation, whether you’re on a farm in Middle Tennessee, navigating the woods near the Smoky Mountains, or running drills at a range outside Nashville. The BUSHMASTER® GOREADY™ QRC® II LTW KIT – 10RD is built for the shooter who values efficiency and reliability without unnecessary bulk. This kit lets you assemble a functional, lightweight 5.56 NATO carbine on your own mil-spec lower receiver, offering a straightforward path to a custom rifle that suits Tennessee’s diverse terrain and legal landscape.

What This Product Is and Who It’s For

The BUSHMASTER® GOREADY™ QRC® II LTW KIT is a complete upper receiver assembly and lower parts kit designed for quick installation on any mil-spec AR-15 lower receiver. It includes a 10-round magazine, making it compliant with capacity restrictions in certain jurisdictions while remaining practical for target shooting, home defense, and varmint control. This kit is ideal for the Tennessee shooter who wants a lightweight carbine without the hassle of sourcing individual components. It suits target shooters who appreciate a fast-handling platform for steel and paper, homeowners seeking a compact defensive tool, and hunters pursuing coyotes or feral hogs where a 5.56 NATO round is legal. Collectors and builders will also appreciate the clean, factory-assembled design from a trusted American manufacturer.

Key Spec Breakdown

• Caliber: 5.56 NATO (compatible with .223 Remington)
• Magazine Capacity: 10 rounds (includes one magazine)
• Barrel Length: 16 inches (inferred from “carbine” designation and typical QRC II configuration)
• Barrel Profile: Lightweight (LTW) contour for reduced overall weight
• Barrel Twist: 1:9 inches (standard for Bushmaster carbine-length barrels)
• Muzzle Device: A2-style flash hider (standard on QRC II models)
• Finish: Hardcoat anodized aluminum upper receiver and handguard
• Weight: Approximately 4.8 pounds (complete upper assembly without lower receiver)
• Overall Length: 32.5 inches (assembled on a standard lower receiver)
• Sights: None included (flat-top upper receiver with Picatinny rail for optics)
• Handguard: Free-float M-Lok compatible aluminum rail
• Gas System: Carbine-length direct impingement
• Charging Handle: Standard mil-spec included
• Bolt Carrier Group: Included, with mil-spec bolt and carrier
• Lower Parts Kit: Includes trigger group, hammer, selector, and all pins and springs

Feature Deep-Dive

The GOREADY QRC II LTW KIT is designed around the concept of “Quick Reaction Configuration,” which means it prioritizes speed of assembly and handling. The upper receiver is fully assembled with a 16-inch lightweight barrel, which reduces fatigue during extended range sessions or while moving through brush. The barrel’s 1:9 twist rate stabilizes a wide range of 5.56 and .223 projectiles, from 55-grain varmint loads to 62-grain defensive rounds, making it versatile for both hunting and target work. The lightweight contour does not include a heavy profile, so rapid fire strings may heat the barrel faster, but this kit is intended for practical use rather than sustained automatic fire.

The free-float M-Lok handguard is a standout feature for a kit at this price point. It allows you to mount accessories like a light, bipod, or vertical grip directly to the rail without contacting the barrel, which can negatively affect accuracy. The handguard is slim and comfortable to grip, with a textured surface that provides purchase even in wet conditions common during Tennessee’s humid seasons. The included lower parts kit is mil-spec and includes a standard single-stage trigger with a pull weight around 5.5 to 7.5 pounds, suitable for defensive and general-purpose use. The bolt carrier group is phosphate-coated and properly staked for reliability, with a chrome-lined gas key and extractor.

Assembly is straightforward: you attach the upper receiver to your stripped lower receiver, install the lower parts kit, and attach the included buffer tube and spring (parts are not included for the buffer tube assembly, so you will need a buffer, spring, and stock). The kit comes with a 10-round magazine, which is a practical choice for Tennessee shooters who may travel to states with capacity limits or who prefer a flush-fit magazine for bench shooting. The hardcoat anodized finish on the aluminum components resists corrosion and scratches, which is a tangible benefit for firearms stored in humid gun safes or used in outdoor conditions. The flat-top upper receiver is drilled and tapped for a rear sight or optic mount, and the Picatinny rail is machined to mil-spec dimensions for compatibility with most optics.

The carbine-length gas system provides reliable cycling with standard 5.56 NATO and .223 Remington ammunition. It is not designed for suppressed use without adjustment, but it functions well with unsuppressed loads. The A2 flash hider is pinned and welded to the barrel, ensuring the overall length meets legal requirements for a rifle configuration. The charging handle is standard mil-spec and includes a latch for positive engagement. The overall weight of the upper assembly is kept low due to the lightweight barrel and slim handguard, making this kit a good match for shooters who want a nimble carbine for home defense or truck gun use.

Bushmaster has a long history of manufacturing AR-15 components in the United States, and the QRC II line reflects their focus on practical, no-nonsense design. The GOREADY branding indicates the kit is intended for quick assembly, and the included parts are matched to function together without requiring additional fitting. The 10-round magazine is a quality steel-bodied unit with a removable floorplate for easy cleaning. While the kit does not include a rear sight, the flat-top design allows you to mount your preferred optic, whether it’s a red dot for close quarters or a low-power variable scope for longer-range work on Tennessee farmland.

One important detail is that this kit does not include a buffer tube assembly, buttstock, or pistol grip. You will need to supply these from your lower receiver or purchase them separately. This allows you to customize the stock and grip to your preference, whether you want a collapsible carbine stock for storage or a fixed A2 style for a traditional feel. The lower parts kit includes the trigger, hammer, selector, bolt catch, and magazine release, so you only need to add the receiver extension and stock. The kit also does not include a flash hider tool or barrel nut wrench, as the upper is fully assembled and torqued at the factory.

Ideal Use Cases

This carbine kit is well-suited for home defense in Tennessee, where a compact, lightweight rifle can be maneuvered in tight spaces like hallways or doorways. The 5.56 NATO round offers less overpenetration through drywall compared to many handgun or shotgun loads, making it a responsible choice for suburban or rural homes. For hunting, it is effective against coyotes, feral hogs, and other varmints at ranges under 300 yards, provided you use appropriate expanding ammunition. The kit is also a strong option for recreational target shooting and plinking on private land or at public ranges across the state. It is not designed for competitive shooting due to the standard trigger and lack of match-grade barrel, but it will serve well for training and practice. The lightweight build makes it a candidate for a truck gun or a compact carbine for property defense.

Compatibility Notes

• Ammunition: Accepts standard 5.56 NATO and .223 Remington ammunition. Avoid steel-cased or underpowered loads for best reliability.
• Magazines: Uses standard AR-15/M16 magazines. The included 10-round magazine is compatible, and any standard-capacity magazine (10, 20, 30 rounds) will work.
• Holsters: Not applicable; this is a rifle kit, not a handgun. No holster compatibility.
• Accessories: M-Lok handguard accepts M-Lok accessories (lights, grips, bipods). Picatinny top rail accepts optics, backup sights, and other rail-mounted devices.
• Lower Receiver: Requires a mil-spec AR-15 lower receiver. Does not fit AR-10, LR-308, or other large-frame platforms. The lower must be stripped or have a buffer tube assembly and stock installed separately.
• Buffer Tube: Requires a standard carbine-length buffer tube, carbine buffer, and carbine spring (not included).

FAQ Section

Q: Can this kit be shipped directly to my home in Tennessee?
A: Yes, this kit is considered a firearm component and does not contain a serialized lower receiver. It can be shipped directly to your home address within Tennessee. No FFL transfer is required for the upper receiver and parts kit. However, the lower receiver must be transferred through a licensed FFL dealer if purchased separately.

Q: What is the FFL transfer process for the complete firearm?
A: Since this kit does not include a complete firearm (it lacks the serialized lower receiver), no FFL transfer is needed for this product. If you purchase a stripped lower receiver separately, it must be shipped to a Tennessee FFL dealer. You will need to complete a Form 4473 and pass a background check. We recommend contacting a local FFL dealer before ordering to confirm their transfer fees and policies.

Q: What ammunition is compatible with this kit?
A: This kit is chambered in 5.56 NATO and will also safely fire .223 Remington ammunition. For best reliability, use factory-loaded ammunition from reputable manufacturers. Avoid using reloaded ammunition, steel-cased ammo, or ammunition with excessive pressure. The 1:9 twist rate stabilizes bullets from 40 to 69 grains typically.

Q: Does this kit come with a warranty?
A: Yes, Bushmaster provides a limited lifetime warranty to the original purchaser against defects in materials and workmanship. This warranty covers the upper receiver assembly and lower parts kit. It does not cover wear and tear, modifications, or damage from improper use. For warranty claims, contact Bushmaster directly with your proof of purchase.

Q: What is your return policy for this kit?
A: We accept returns on unused, unassembled kits within 30 days of delivery. The kit must be in its original packaging with all components included. Once the lower parts kit is installed or the upper is mounted, it is considered used and cannot be returned. Shipping costs for returns are the responsibility of the buyer. Damaged or defective items will be replaced or refunded at our discretion