Fightlite Industries SCRLWRRBK SCR 7075-T6 Aluminum Black Hardcoat Anodize for AR/M4 Rifle

The Fightlite Industries SCR lower receiver is a purpose-built platform for builders who want modern rifle ergonomics paired with true multi-caliber flexibility. This 7075-T6 aluminum forged lower ships to all 50 states as a receiver assembly—no FFL transfer required in most jurisdictions—and lets you assemble a complete, semi-automatic rifle by adding only an upper receiver, bolt, firing pin, and magazine. It's the foundation for a hunting rifle, competition gun, or range rig configured exactly how you want it.

Built from aerospace-grade aluminum and finished in MIL-Spec hardcoat anodize, the SCR lower is engineered for durability under field conditions: rain, mud, sand, and weather won't compromise its corrosion resistance or reliability. The receiver uses captive push-pin takedown, meaning no lost parts in the field. At 2.5 lbs, it's lightweight without sacrificing rigidity. The stock features a rubber buttpad and QD sling swivel cups for practical hunting or tactical use, with a 13.5-inch length of pull suitable for most shooters in lighter gear.

The real advantage of the SCR platform is its appetite for calibers. The lower accepts most AR/M4 bolts, barrels, and uppers, which means you can run common cartridges—5.56, 7.62x39, .300 BLK, 6.8 SPC, 6mm ARC, 6.5 Grendel, .458 SOCOM, and others—on the same receiver. This flexibility keeps your logistics lean: one lower, multiple uppers, one magazine ecosystem. The handguard accepts standard AR/M4 furniture, so you're not locked into proprietary parts or accessories. Everything is manufactured in the USA from high-quality materials and backed by a lifetime warranty.

If you're building a rifle from the ground up and want the advantages of a modern platform without proprietary constraints, the SCR lower is a smart, durable choice.

Key Features

• Aerospace-grade 7075-T6 aluminum forgings with captive push-pin takedown
• Ships as a receiver assembly to all 50 states; add upper, bolt, firing pin, and magazine to complete the build
• Accepts most AR/M4 uppers, bolts, barrels, handguards, and magazines for true multi-caliber capability
• MIL-Spec black hardcoat anodize and steel manganese phosphate finishes for corrosion resistance
• Lightweight at 2.5 lbs with practical furniture: rubber buttpad and QD sling swivel cups
• 13.5-inch length of pull for comfortable shouldering
• 100% USA manufacturing; lifetime warranty

Specifications

Frequently Asked Questions

What calibers does the SCR lower support?

The SCR lower accepts most AR/M4 bolts and barrels, so you can configure it for popular intermediate cartridges including 5.56/.223, 7.62x39, .300 BLK, 6.8 SPC, 6mm ARC, 6.5 Grendel, .458 SOCOM, and .450 Bushmaster. The lower itself is caliber-agnostic; your choice of upper receiver, barrel, and bolt determines the caliber.

Do I need a gunsmith to assemble the SCR?

No. The lower receiver assembly includes everything needed for the lower itself. To complete the rifle, you simply add an AR/M4 upper receiver assembly, bolt, firing pin, and magazine—all drop-in parts with no gunsmith required. Assembly is straightforward for anyone familiar with AR-pattern rifles.

What upper receivers and accessories are compatible with this lower?

The SCR lower accepts MIL-Spec AR/M4 upper receivers, bolts, barrels, handguards, and magazines. It is designed for broad compatibility with modern sporting rifle parts and accessories, which reduces your logistical burden and lets you swap uppers or configure the rifle to your needs without proprietary constraints.

Why does the SCR lower ship to all 50 states?

The SCR is a receiver assembly—a partially complete firearm component—which has specific legal status. Laws vary by state, but the SCR's design allows it to be shipped as a receiver assembly in most jurisdictions. Check your local and state laws before purchase, as regulations differ, and verify with your FFL if applicable in your area.