Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart

13% OFF Firearm Parts

HOTDLClick to Copy Coupon Code
Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter coupon code for savings on that select model! Limited time only. Cannot be combined with other promotions or offers.
Color:
Black
Caliber:
9mm Luger
Gun Make:
AR Platform
Gun Model:
AR-9
Weight:
14.9 oz

Code: 5MY-BCG-MRRT5-MAR-9-BCG-NTR

MPN: MAR-9-BCG-NTR

UPC: 799787099214

List: $139.95Save 11%
$123.99

  • Moriarti AR-9 9mm Nitride Bolt Carrier Group, Glock Compatible, MIL-SPEC, Black Anodized, MAR-9-BCG-NTR
  • Walker Defense Research Research Steel Bolt Carrier Group BCG, 5.56mm / .300 BLK, DLC, Flat Dark Earth, FDE-DLC-BCG-556
As low as $313.98
You Save Up to 13%
OP Bucks$6.28

Product Info for Moriarti AR-9 9mm Nitride Bolt Carrier Group

Enhance the reliability and performance of your AR-9 build with this Nitride Bolt Carrier Group (BCG). Crafted from MIL-SPEC 8620 steel and featuring an external extractor, this BCG is built for high-performance operation. The QPQ salt bath nitride finish enhances corrosion resistance, ensuring your BCG remains durable and smooth for thousands of rounds.image

This AR-9 BCG is fully heat-treated to ensure maximum strength and longevity. It's compatible with 9mm conversion kits and Glock-style magazine billet lowers, making it an ideal choice for those building or upgrading their AR-9 platform. The dust cover compatibility and its weight of 14.9 ounces make this BCG a reliable, robust choice for your next build.

Specifications for Moriarti AR-9 9mm Nitride Bolt Carrier Group:

Manufacturer: Moriarti
Color: Black
Fabric/Material: Steel
Caliber: 9mm Luger
Gun Make: AR Platform
Gun Model: AR-9
Weight: 14.9 oz

Features of Moriarti AR-9 9mm Nitride Bolt Carrier Group

  • Material: MIL-SPEC 8620 steel for strength and durability.
  • External Extractor for efficient extraction and cycling.
  • Finish: QPQ Salt Bath Nitride for superior corrosion resistance and smooth cycling.
  • Weight: 14.9 ounces, ensuring optimal function and stability.
  • Compatibility: Designed for Glock-style magazine billet lowers and 9mm conversion kits.
  • Dust Cover Compatible for easy assembly and protection.

Package Contents:

  • Moriarti AR-9 9mm Nitride Bolt Carrier Group

Moriarti AR-9 9mm Nitride Bolt Carrier Group Orderable Models

List of Orderable Models

  • Moriarti AR-9 9mm Nitride Bolt Carrier Group, Glock Compatible, MIL-SPEC, Black Anodized, MAR-9-BCG-NTR , MPN: MAR-9-BCG-NTR , UPC: 799787099214 , Code: 5MY-BCG-MRRT5-MAR-9-BCG-NTR
Compare (0)
Last updated 2026-08-21 UTC.