RISE Armament Low-Mass Bolt Carrier Group — 5.56x45mm NATO, Nickel Boron, AR-15 (Model RA-1010-NIB | UPC 850043415015)

Chase faster splits and flatter recoil with the RISE Armament Low-Mass Bolt Carrier Group (BCG) for AR-15 rifles chambered in 5.56x45mm NATO (also compatible with .223 Rem and most .223 Wylde builds). Engineered to reduce reciprocating weight and finished in ultra-slick Nickel Boron (NiB), this performance carrier cycles smoothly, resists fouling, and helps you stay on target during rapid strings—perfect for competition, training, and tuned general-purpose carbines.

Why Upgrade to a Low-Mass NiB BCG

• Reduced Recoil Impulse: Lower carrier weight means less reciprocating mass, helping cut muzzle dip and sight bounce for quicker follow-up shots.

• Nickel Boron Slickness: NiB’s naturally low friction provides buttery cycling, easier cleaning, and excellent wear resistance in high-round-count rifles.

• Competition-Ready Feel: Smoother impulse and faster return to battery support tighter transitions on the clock.

• Heat & Corrosion Resistance: Premium steel construction with a tough NiB finish stands up to carbon, solvents, and round-after-round abuse.

• Complete Assembly: Ships as a complete BCG—carrier, bolt, gas key, cam pin, firing pin, and retaining pin—so you can drop in and tune.

Pro Tip: For best results, pair a low-mass carrier with an adjustable gas block and properly weighted buffer/spring to tailor your recoil impulse to your ammo and suppressor (if used and where lawful).

Performance You Can Feel

• Faster splits and improved sight tracking during double-taps and long strings.

• Cleaner operation thanks to NiB’s fouling-shedding surface—wipe down and keep running.

• Consistency across conditions with a carrier that glides even when hot, dirty, or lightly lubed.

Feature Highlights

• Caliber/Platform: 5.56x45mm NATO (AR-15 platform; .223 Rem/.223 Wylde compatible)

• Finish: Nickel Boron (NiB) on carrier and bolt contact surfaces for low friction and easy cleaning

• Design: Low-mass profile to reduce reciprocating weight and felt recoil

• Gas Key: Properly fastened and staked key for secure gas seal

• Configuration: Complete BCG (carrier, bolt, gas key, cam pin, firing pin, retaining pin)

• Brand / Model: RISE Armament RA-1010-NIB

• UPC: 850043415015

Ideal Use Cases

• 3-Gun & action shooting: Faster target-to-target transitions and less sight bounce.

• Tuned training carbines: Pair with adjustable gas for soft, reliable function.

• Suppressor-ready builds: Dial back over-gas to manage blowback and wear (where legal).

• General upgrades: Replace gritty or worn carriers for smoother cycling and easier cleanup.

Installation & Tuning (Quick Guide)

1. Verify unloaded. Separate upper/lower; remove existing BCG and charging handle.

2. Lube lightly. Apply a thin oil film to rails, cam path, and bolt lugs.

3. Drop in the RISE BCG with your charging handle and function-check.

4. Tune your gas. Start with an adjustable gas block nearly closed; open until lock-back on last round, then add a small margin.

5. Confirm reliability with your match/defense ammo (and suppressor if used).

Note: Low-mass carriers may require gas and buffer tuning for optimal reliability, especially on short barrels or suppressed rigs.

Care & Maintenance

• Wipe & go: NiB surfaces release carbon easily; use a nylon brush and quality CLP/oil.

• Inspect regularly: Check gas key screws, extractor tension, and firing pin channel.

• Keep it wet-ish: While NiB runs slick, a light oil film further reduces wear and fouling.

Compatibility & Fit Notes

• Fits AR-15 uppers in 5.56/.223 families (not AR-10/LR-308).

• Works with carbine or rifle-length gas systems; optimal with adjustable gas blocks.

• Buffer and spring selection affect cycling—consider tuning to your barrel length and muzzle device/suppressor.

Safety & Compliance

• Always follow local, state, and federal laws regarding firearm parts and suppressor use.

• Unload and clear your rifle before installation or maintenance.

• After installation, test for safe function before match or duty use.

What’s in the Box

• RISE Armament Low-Mass 5.56 AR-15 BCG — Nickel Boron (RA-1010-NIB)

• Factory documentation (if provided)

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Make your AR-15 run flatter, cleaner, and faster with the RISE Armament Low-Mass BCG (RA-1010-NIB)—a Nickel Boron upgrade built for smooth cycling and serious performance.

The End