1. Home
  2. Firearm Components
  3. Slides & Receivers
  4. Bolt Carrier Groups
Bolt Carrier Groups

Spike’s Tactical Bolt Carrier Group for AR-15 5.56 NATO – Nickel Boron Finish (ST5BG03)

No reviews yet Be the first to review
Brand Spike's Tactical Shop all → MFR# ST5BG03 UPC 855319005501
Shop all →
Free ground shipping
Spike’s Tactical Bolt Carrier Group for AR-15 5.56 NATO – Nickel Boron Finish (ST5BG03)

Click the image to open it full size. Additional supplier images appear when available.

Why customers choose this item

  • Nickel boron coated BCG
  • 5.56 NATO bolt carrier
  • Coated bolt and carrier
  • Laser engraved logo
  • Smooth surface finish
  • Fits AR15 rifles

Product highlights

  • Bolt carrier group designed for AR rifles chambered in 5.56 NATO
  • Nickel boron coating applied to bolt, carrier, and gas key surfaces
  • Provides smooth operation and reduced friction during firing cycles
  • Laser engraved spider logo featured on exterior carrier surface
  • Silver finish offers corrosion resistance and easy cleaning characteristics
  • Compatible with AR platform rifles requiring 5.56 bolt carrier group assemblies

Product description

The Spike’s Tactical Bolt Carrier Group is a bolt carrier group designed for cycling operation in AR-15 rifles chambered in 5.56 NATO. This bolt carrier group features a nickel boron coating applied to the bolt, carrier, and gas key. It is intended for installation in compatible AR platform upper receivers.

The Spike’s Tactical Bolt Carrier Group includes a laser engraved spider logo and is categorized under bolt carrier group components. The nickel boron finish is applied to internal and external surfaces of the assembly. It supports AR-15 compatibility and standard upper receiver integration. In practical use, this bolt carrier group is used for chambering and extraction functions during operation. The assembly interfaces with the barrel extension, buffer system, and upper receiver in typical AR-15 configurations.

Specifications

Brand
Spike's Tactical
Model / Series
ST5BG03
MPN (Manufacturer Part #)
ST5BG03
UPC
855319005501
Item Type (leaf)
Bolt Carrier Group
Pack Quantity
1
Primary Use / Application
AR-15 Bolt Carrier
Platform Compatibility
AR-15/M16
Caliber Compatibility
5.56mm NATO
Material
Steel
Finish / Coating
Nickel Boron
Configuration
Full Auto Profile
Included Components
MPI Bolt

Related searches

556 NATO BCG AR-15 BCG Bolt Carrier Groups NiB Bolt Carrier Group Nickel Boron BCG Silver BCG Spike's Tactical

Compare Similar Products

Attribute You're viewing
Spike's Tactical Bolt Carrier Group for AR-15 5.56 NATO – Nickel Boron Finish (ST5BG03)
Spike's Tactical Bolt Carrier Group for AR-15 5.56 NATO – Nickel Boron Finish (ST5BG03)
Spike's Tactical 9mm Bolt Carrier Group for AR Platforms – Nitride, Black (ST9BG01)
Spike's Tactical 9mm Bolt Carrier Group for AR Platforms – Nitride, Black (ST9BG01)
Spike's Tactical Bolt Carrier Group for AR-15 – HPT/MPI Bolt, Phosphate, Black (ST5BG01)
Spike's Tactical Bolt Carrier Group for AR-15 – HPT/MPI Bolt, Phosphate, Black (ST5BG01)
Price$220.37$193.48$150.90
Primary Use / ApplicationAR-15 Bolt Carrier9mm Blowback SystemAR-15 Bolt Carrier
Platform CompatibilityAR-15/M16AR-15 9mmAR-15/M16
MaterialSteel416 StainlessSteel
Finish / CoatingNickel BoronBlack NitridePhosphate
Caliber Compatibility5.56mm NATO9mm Luger5.56 NATO
ConfigurationFull Auto ProfileBlowback DesignM16 Profile

You May Also Like

Related Products

Featured offers

Volume pricing for business and agency buyers, plus free ground shipping on most continental U.S. orders.

Business & agency accounts

Bulk discounts

Volume pricing, dedicated account management, ACH payment options, and special sourcing for businesses, agencies, law enforcement, and first responders.

Register an account
Every contiguous U.S. order

Free ground shipping

No minimum. Orders ship within one business day of payment and verification, and eligible orders can be upgraded to as fast as next-day at checkout.

See shipping details

Customer reviews

No reviews yet This product hasn't been reviewed. If you've used it, your write-up helps the next buyer.

Write a review

New gear, restocks, and member pricing

One email a week. Product drops, price changes on items you follow, and business-account offers.

Unsubscribe any time. We don't sell your address.