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
Government Export Restriction Government Export Restriction
Questions & Answers
Will this for a 556x45 ?

Yes. Will work with 5.56 NATO (5.56x45) and 300 Blackout.

by Hawkeye, Verified Owner, April 30, 2026
can this be use in a Ar15 223 wild barrel?

Yes. A 5.56 NATO BCG will work with a 223 Wylde barrel.

by Hawkeye, Verified Owner, April 30, 2026
Customer Reviews
Most Recent Reviews
Loving my new BCG it fix’s and works great can’t go wrong with this purchase.
Read 1 Review
Color:
Black
Caliber:
5.56mm

Code: 1TO-BCG-GSL3-05-2993

MPN: 05-2993

UPC: 810081134996

List: $437.99Save 10%
$393.00

  • Geissele Reliability Enhanced Bolt Carrier Group, 5.56mm, 05-2993
  • Walker Defense Research Research Steel Bolt Carrier Group BCG, 5.56mm / .300 BLK, DLC, Flat Dark Earth, FDE-DLC-BCG-556
As low as $598.19
You Save Up to $59.79
OP Bucks$11.96

Product Info for Geissele Reliability Enhanced 5.56mm Bolt Carrier Group

The Reliability Enhanced Bolt Carrier Group is a 5.56mm full-mass, full-auto rated M16/M4 bolt carrier group manufactured in Geissele’s state-of-the-art manufacturing facility in North Wales, PA. The carrier features a properly torqued and staked, Chrome Lined, Nano coated, gas key. The cam pin is machined from an advanced tool steel also used to produce medical instrumentation known as H13, it is then coated with Nanoweapon® (Chrome-Nitride) for maximum corrosion and wear resistance. The extended upper rails on the carrier also provide much greater stability and dramatically increase feeding reliability. The Carrier is coated with Nanoweapon® for maximum corrosion and wear resistance.image

 The Geissele Reliability Enhanced Bolt Carrier Group comes with the Geissele Stressproof Bolt. Each Forged bolt is rigorously inspected, high pressure tested, mag particle inspected and Nanoweapon coated. 

WARNING: California`s Proposition 65

Specifications for Geissele Reliability Enhanced 5.56mm Bolt Carrier Group:

Manufacturer: Geissele
Color: Black
Caliber: 5.56mm

Package Contents:

  • Geissele 5.56mm Reliability Enhanced Bolt Carrier Group

Geissele Reliability Enhanced 5.56mm Bolt Carrier Group Orderable Models

List of Orderable Models

  • Geissele Reliability Enhanced Bolt Carrier Group, 5.56mm, 05-2993 , MPN: 05-2993 , UPC: 810081134996 , Code: 1TO-BCG-GSL3-05-2993
Compare (0)
Last updated 2026-08-09 UTC.