Bootleg Inc Four Position Adjustable AR-15 S7 Bolt Carrier Group - 5.56 NATO/.300 BLK
or 4 interest-free payments of $51.25 with
6 Magazines Per Order: Due to extreme volume, we are limiting sales of magazines to 6 per customer order. This applies to individual and bundled magazines. AT3 reserves the right to cancel any order over the 6 magazine limit.
- Free standard shipping on orders $139+ details
- 90-day no-hassle returns policy
- Backed by the Bootleg Inc’s Lifetime Warranty! what it covers
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From orders that included this itemProduct description
High-Performance BCG Upgrade From Bootleg For Less Gas
The Bootleg Inc Bolt Carrier Group is an innovative upgrade for Mil-Spec BCG that fits AR-15/M4 pattern rifles in .223 Remington, 5.56 NATO, and 300 AAC Blackout. It offers a 4-setting adjustable vent system that relieves excess gas pressure created from the suppressor creating longer dwell time and less blowback to the shooter.
It has a gas adjustment that can be turned while installed in the rifle and uses all standard Mil-Spec components as well as a staked Mil-Spec gas key and a removable adjustment pin for easy cleaning.

S7 Tool Steel with Lithium Isonite Coating
The Bootleg Inc Bolt Carrier Group is full-auto rated and machined from S7 Tool Steel finished with lithium Isonite Coating for long-lasting durability and corrosion resistance.
If you are looking for a convenient way to adjust the gas in your AR to reduce the amount hitting your face/eyes, you can’t go wrong with the Bootleg 4-Position Adjustable Carrier.
Features:
- Machined from S7 Tool Steel
- 4 Setting Adjustable Vent System
- Lithium Isonite Coating
- Gas Adjustment
- Full Auto Rated
- Staked Mil-Spec Gas Key
- Removable Adjustment Pin
- Forward Assist Serrations
Specifications:
- Bolt Finish: Lithium Isonite
- Bolt Material: 9310 Steel
- Compatibility: .223/5.56 NATO/.300 BLK
- Finish: Lithium Isonite
- Carrier Profile: M16
- HP Tested: Yes
- Magnetic Particle Inspected: Yes
Customer reviews 2
AT3 Tactical · Thank you for your positive feedback on the Bootleg Inc Four Position Adjustable AR-15 Bolt Carrier Group. We're glad to hear that it's working well for your short build and that you found it to be a great alternative to using an adjustable gas block. If you have any other questions or concerns, please don't hesitate to reach out. Happy shooting!
AT3 Tactical · Thank you for sharing your feedback! We're glad you are satisfied with your purchase!
Questions & Answers
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Warranty & returns
Backed by the Bootleg Inc’s Lifetime Warranty!
Bootleg Inc’s Lifetime Warranty!
We would like to congratulate you on your choice of Bootleg, Inc. products. We hope that, above all, you are satisfied with the AR 15 handguard rail system, upper receiver kit, or other custom AR parts you have received.
Should you be dissatisfied with the custom AR parts you have received, Bootleg, Inc. offers a 30-day return, refund, and exchange policy. If the return or exchange of any of your products is necessary, please contact Bootleg Inc at the following:
Contact Details:
- customer service via telephone: 208-914-3300
- email: customercare@bootleginc.com
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.
















