BHA Precision AR-15 6.8 SPC / 400 / 450 Black Nitride Complete Bolt Carrier Group - BCG w/ Warhammer Charging Handle KIT
BRAND NEW
PRE-OWNED
In Stock ONLINE
BLAZING FAST SHIPPING in 1-3 Days
Store Availability: IN STOCK - Grimes, Iowa
Secure Online Ordering
Fast Shipping
Trusted Retailer
RECOMMENDED FOR YOU
BHA Precision AR-15 6.8 SPC / .400 / .450 Black Nitride Complete BCG + BattleHawk WarHammer Mod2 Ambidextrous Charging Handle — Kit
Kit SKU: BHA-KIT-BCG-WH-001
Includes UPCs: 810180580557 (BCG), 810180582025 (WarHammer CH)
Premium AR-15 kit for big-bore builds — BHA Precision 6.8 SPC/.400/.450 Black Nitride Complete BCG + BattleHawk WarHammer Mod2 Ambidextrous Charging Handle. Now available at BattleHawk Armory.
-
Built for 6.8 SPC, .400 Legend, & .450 Bushmaster.
-
BCG: 8620 case-hardened carrier, 9310 bolt, Black Nitride finish, MPI & HPT tested. UPC 810180580557.
-
Charging handle: 7075-T6 WarHammer Mod2, ambidextrous large levers, gas-relief Mod2 design. UPC 810180582025.
-
Made in the USA • Battle.Forever Lifetime Warranty • Ideal for hunting, duty, and heavy-use precision builds.
Overview
Built to handle the added pressure and punch of big-bore AR calibers, the BHA Precision 6.8 SPC / .400 / .450 Black Nitride Complete Bolt Carrier Group is engineered to deliver smooth cycling, rock-solid durability, and long service life in AR-platform rifles chambered in 6.8 SPC, .400 Legend, and .450 Bushmaster. Paired with the BattleHawk Armory WarHammer Mod2 Ambidextrous Charging Handle, this kit upgrades both internal function and user ergonomics for serious shooters and hunters.
BCG — Heavy Duty Performance
The carrier is precision machined from 8620 case-hardened steel and finished in corrosion-resistant Black Nitride for enhanced lubricity and reduced wear in harsh conditions. The gas key is 4130 steel, milled valley, and staked with Grade 8 hardware. The bolt is CNC-ground from 9310 case-hardened steel, shot-peened and Black Nitride finished for maximum strength and fatigue resistance. The BCG uses a hardened 4340 cam pin and an 8740 Mil-Spec firing pin that is centerless ground and hard-chrome coated. Extractor is 4340 steel with Mil-Spec spring + O-ring combo. All bolts are MPI inspected and high-pressure tested.
WarHammer Mod2 Charging Handle — Faster, Cleaner, Safer
The BattleHawk WarHammer Mod2 is CNC machined from 7075-T6 aerospace aluminum and features oversized ambidextrous levers for fast manipulation with either hand (ideal for gloved use). Mod2 relief cuts help direct excess gas away from the shooter’s face for more comfortable suppressed or high-volume shooting. Wide set-back latches clear large optics, and the higher rear shelf helps cover the upper receiver for reduced gas blowback.
Why this kit?
-
Purpose-built for big bore ARs — components selected and spec’d to stand up to higher bolt thrust and duty use.
-
Enhanced ergonomics + reliability — WarHammer charging handle speeds reloads and clearing; the BCG keeps you running.
-
Ideal for hunters, law enforcement, competition, and serious trainers who want durable, USA-made parts.
-
Backed by BHA PRECISION engineering and BattleHawk Armory’s Battle.Forever Lifetime Warranty.
Proudly made in the USA. Now available at BattleHawk Armory — engineered to perform, built to endure.
What’s included (pack contents)
-
1 × BHA Precision Complete Bolt Carrier Group — 6.8 SPC / .400 / .450, Black Nitride (UPC: 810180580557)
-
Carrier (8620 case-hardened, Black Nitride)
-
Bolt (9310 case-hardened, CNC ground, Black Nitride, shot-peened)
-
4340 extractor with spring & O-ring, hardened cam pin, 8740 chrome firing pin
-
MPI & HPT certified bolt
-
-
1 × BattleHawk Armory AR-15 WarHammer Mod2 Ambidextrous Charging Handle — Black Large Lever (UPC: 810180582025)
-
Installation/fitment notes card and warranty information
Technical specifications
BCG
-
Fits: AR-15 / M4 platform (6.8 SPC, .400 Legend, .450 Bushmaster)
-
Carrier material: 8620 case-hardened steel
-
Bolt material: 9310 case-hardened steel (CNC ground post-heat treat)
-
Finish: Black Nitride (carrier & bolt)
-
Gas key: 4130 steel, staked Grade 8 in milled valley
-
Cam pin: Hardened 4340
-
Firing pin: 8740 steel, centerless ground, hard chrome coated
-
Extractor: 4340 with Mil-Spec spring + O-ring
-
Testing: MPI (Magnetic Particle Inspection), HPT (High Pressure Tested)
-
Origin: USA
Charging Handle
-
Material: 7075-T6 aerospace aluminum
-
Design: WarHammer Mod2, ambidextrous large levers (approx. 2.78" total width)
-
Features: Optics clearance, gas-relief Mod2 cuts, higher rear shelf, lightweight (<1 oz nominal)
-
Finish: Black anodize
-
Fitment: Mil-Spec AR-15/M16 upper receivers (drop-in)
-
Origin: USA
Fitment & compatibility notes
-
BCG: Requires AR-15/M4 style bolt carrier group interface; intended for rifles chambered in 6.8 SPC, .400 Legend and .450 Bushmaster only. Not intended for standard 5.56/.223 use — confirm barrel and gas system compatibility before installation.
-
Charging handle: Fits Mil-Spec upper receivers. Works with common optics but always verify clearance with your optic footprint.
-
Professional installation recommended if you are unfamiliar with AR-15 armorer procedures.
Warranty & returns
Battle.Forever Lifetime Warranty — BHA PRECISION parts are covered under the BattleHawk Armory lifetime warranty for defects in materials and workmanship. Warranty does not cover improper installation, negligent use, unauthorized modification, or normal wear. See warranty card for details. Returns accepted per BattleHawk Armory return policy — product must be in new, unused condition unless returning for warranty repair/inspection.
| Manufacturer | BHA Precision |
| Model | BCG 6.8 / 400 / 450 w/ CH |
| UPC | 8101805805571 |
| SKU | BATT-M4-68-ST-002KIT |
| Width | 2.0000 |
| Length | 8.0000 |
| Height | 2.0000 |
| Weight | 1.0000 |



FFL Required