The Lantac Enhanced Side-Charge Bolt Carrier Group in nickel boron is the E-BCG made for side-charging AR-15 uppers chambered in .223/5.56 (brand part no. 01-UP-SC-NIB-EBCG). It is machined from 8620 steel with a shot-peened, magnetic-particle-inspected bolt and uses a full-auto-style carrier for added mass and lock time. This bolt carrier group will not work in a standard AR-15 upper receiver; it must be used with a side-charging upper. The side-charger version comes complete with a knurled 440 stainless screw-in handle.

Key Specifications

• The caliber is .223/5.56, the cartridge family this E-BCG is built to run.
• The finish is nickel boron, a low-friction coating.
• The carrier is 8620 steel, heat treated and hard turned and ground after heat treatment.
• The bolt is Carpenter 158 or 9310 steel, shot peened and magnetic-particle inspected.
• The carrier uses a full-auto-style design for increased mass and lock time.
• Forward porting and enlarged vents vent gas differently than a standard carrier to smooth the recoil pulse.
• It is for side-charging uppers only, so it will not work in a standard AR-15 upper.

Frequently Asked Questions

Will it work in a standard AR-15 upper? No. Lantac states that this bolt carrier group will not work in standard AR-15 upper receivers and must be used with a side-charging upper.

Does it include a charging handle? Yes. Lantac states this side-charger version comes complete with its 440 stainless steel knurled screw-in handle.

What is different about the carrier design? It uses shrouded, forward-facing gas ports, resized so gas vents differently than on a standard carrier, which Lantac says smooths the energy pulse.

Buy the Lantac Enhanced Side-Charge Bolt Carrier Group, Nickel Boron

Side-charging builds need a bolt carrier group designed around their upper, and this E-BCG is made for exactly that layout. Order it from our Lubbock, Texas gun shop for fast, direct shipping, and browse more AR bolt carrier groups to round out the upper.