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Questions & Answers
Is it slick side or fwd assist? Expert Answer

This is a BCG not an Upper Receiver.

by Patrick, Gear Expert, November 11, 2021
Will this work with 5.56 and 300 blackout? Expert Answer

I would recommend using .223/5.56 for best results unless otherwise stated by the manufacture.

by Ben, Gear Expert, September 29, 2021

We've got an AWESOME deal for you!

Blazin' Deal
Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
Color:
Steel
Caliber:
.223 Remington, 5.56x45mm NATO
Gun Make:
AR Platform
Gun Model:
AR-15
Condition:
New
Included Accessories:
Standard

Code: 3FN-BCG-75LUTH-BC-A-223

MPN: BC-A-223

UPC: 859992007012

Blazin' Deal
List: $119.99Save $2.40
$117.59

  • Luth-AR Complete Bolt Carrier Assembly, AR-15, 5.56/.223, Steel, Black, BC-A-223
  • Walker Defense Research Research Steel Bolt Carrier Group BCG, 5.56mm / .300 BLK, DLC, Flat Dark Earth, FDE-DLC-BCG-556
As low as $322.78
You Save Up to $17.20
OP Bucks$4.10

made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Luth-AR Complete AR-15 5.56/.223 Bolt Carrier Assembly

These complete Bolt Carrier Groups from Luth-AR are drop-in ready for your AR-15 rifle. The Luth-AR Complete AR-15 5.56/.223 Bolt Carrier Assembly includes 2 bolt carrier key screws, carrier key, firing pin, cam pin, and firing pin retaining pin.image

The Heat-treated bolt carrier made of 8620 steel is to Army Mil-Spec standards, the cam pin is 4340 alloy steel, and the carrier key is 4130 alloy steel. The bolt is manganese phosphate, and the extractor is 4140 chrome-moly.

Luth-AR has been making innovative and top-quality AR parts since 2013, and their popularity and track record speak for themselves!

Specifications for Luth-AR Complete AR-15 5.56/.223 Bolt Carrier Assembly:

Manufacturer: Luth-AR
Color: Steel
Fabric/Material: 4140 Chrome Moly, 8620 Steel, 4340 Alloy Steel, 4130 Steel
Carrier Material: 8620 Steel
Bolt Material: Steel
Caliber: 5.56x45mm NATO, .223 Remington
Gun Make: AR Platform
Gun Model: AR-15
Condition: New
Included Accessories: Standard
Country of Origin: USA

Features of Luth-AR Complete AR-15 5.56/.223 Bolt Carrier Assembly

  • Bolt: Due to supply chain issues, material for the bolt may vary.
  • Mil-Spec heat treat
  • Manganese Phosphate
  • Bolt Carrier Specs: Carrier: 8620 steel
  • Cam pin: 4340 Alloy steel
  • Carrier key: 4130 Alloy steel
  • Army Spec Heat Treatment
  • Manganese Phosphate or Black Nitrate finish (based on available inventory)
  • Auto or Semi-Auto cut (based on available inventory)
  • Extractor: 4140 Chrome Moly
  • Machined from bar-stock
  • Mil-Spec heat treat
  • Manganese Phosphate

Package Contents:

  • Luth-AR Complete AR-15 5.56/.223 Bolt Carrier Assembly
  • Bolt Carrier
  • Carrier Key
  • Firing Pin
  • Cam Pin
  • Firing Pin Retaining Pin
  • Bolt carrier key screws (2)

Luth-AR Complete AR-15 5.56/.223 Bolt Carrier Assembly Orderable Models

List of Orderable Models

  • Luth-AR Complete Bolt Carrier Assembly, AR-15, 5.56/.223, Steel, Black, BC-A-223 , MPN: BC-A-223 , UPC: 859992007012 , Code: 3FN-BCG-75LUTH-BC-A-223

Luth-AR Complete AR-15 5.56/.223 Bolt Carrier Assembly Unavailable & Discontinued Models

List of Unorderable Models

  • USED Luth-AR Complete Bolt Carrier Assembly, AR-15, 5.56/.223, Steel, Black, BC-A-223, EDEMO3, Condition Parts Only/Salvage, Defective , MPN: BC-A-223-EDEMO3 , Code: 3FN-BCG-75LUTH-BC-A-223-EDEMO-DF-F
  • Open Box, Dealer Demo, Luth-AR Complete Bolt Carrier Assembly, AR-15, 5.56/.223, Steel, Black, BC-A-223 , MPN: BC-A-223-DMO , Code: 3FN-BCG-75LUTH-BC-A-223-DMO
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Last updated 2026-07-15 UTC.