Sons of Liberty Gun Works SOLGW 5.56mm/.300 AAC Blackout Bolt Carrier Group

Sons of Liberty Gun Works SOLGW Bolt Carrier Group, 5.56mm/300 AAC Blackout, 158 Carpenter, Phosphate, Black, SOLGWBCG556

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Questions & Answers

Will it work for 300 blackout? Expert Answer

I would recommend sticking with 5.56 for the safest results until the manufacture states otherwise.

by Ben, Gear Expert, September 1, 2021

See 2 More Answers

What is the combined installed weight of this BCG? Expert Answer

It is approximately 11 ounces.

by Ben, Gear Expert, September 1, 2021

View All Q&A You Have a Question? Ask!

Customer Reviews

Helpful Positive Review

It is Not what Companies tell you about their products, but what they don't tell you that matters... by Bill S, January 21, 2021

When it comes to Bolt Carrier Groups they are the HEART of the Rifle. It is one of the two most vital components of the entire gun. Some companies will lest every little detail while others use vague terminology and say very little. Some of the specs...
Read More...

34/37 found this helpful

Helpful Positive Review

Outstanding BCG by Prepared, Verified Owner, July 10, 2024

First off its just a millspec BCG, With that said this is the best Millspec BCG I currently own. I have plenty of other BCG's of various makes and types that all work fine but compared to this BCG you can tell they aren't on the same level. All part ...
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3/3 found this helpful

Helpful Positive Review

Exceptional attention to detail by Bear Rider, Verified Owner, September 16, 2025

The BCG from Sons of Liberty arrived dirty, which was perfect. Traces of brass on the end of the bolt and gunpowder residue in the gas key and gas ring bolt bore which let me know that it had actually been test fired before shipping. The Staking of t...
Read More...

1/1 found this helpful

Helpful Positive Review

300 blackout by bjorn, Verified Owner, November 7, 2024

Easy maintenance and lifetime warrant works well with my sons of Liberty upper 9 inch. Buy it

1/1 found this helpful

Helpful Positive Review

follow up review by Jason Edwards, Verified Owner, August 16, 2024

This is a follow up. After 2000 rounds through a dedicated suppressed SBR upper. No issues. No malfunctions to date. Gas rings still good. Extractor and ejector still good. I only clean it ever 400-500 rounds. I have 3 of these. All very consist...
Read More...

1/1 found this helpful

Helpful Positive Review

The first review for this product is spot on...99% by Vuduquestioner, February 28, 2022

I really like that SOLGW is more transparent than most companies but it is still hard to get direct blatant answers from lots of these assembly companies (I.E. BA makes SOLGW barrels, etc). From my best collection of speculations, I believe this is a...
Read More...

3/5 found this helpful

Read All 34 Reviews

Color:: Black
Finish:: Phosphate
Caliber:: .300 AAC Blackout, 5.56x45mm NATO
Gun Make:: AR Platform
Gun Model:: AR-15
Hand:: Right
Condition:: New

Code: 40W-BCG-SOLGPH60-SOLGWBCG556

MPN: SOLGWBCG556

UPC: 691821352340

List: ~~$234.99~~Save 15%

$199.00

Sons of Liberty Gun Works SOLGW Bolt Carrier Group, 5.56mm/300 AAC Blackout, 158 Carpenter, Phosphate, Black, SOLGWBCG556
Walker Defense Research Research Steel Bolt Carrier Group BCG, 5.56mm / .300 BLK, DLC, Flat Dark Earth, FDE-DLC-BCG-556

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Product Info for Sons of Liberty Gun Works SOLGW 5.56mm/.300 AAC Blackout Bolt Carrier Group

Anyone who knows us, knows our BCG’s. We test fire every unit in full auto after inspection, to guarantee our customer receives an efficient BCG they can trust for life. We HP/MPI inspect every bolt individually, upgrade the extractor spring with a Sprinco enhanced 5-coil spring, and deeply stake the gas key once it’s torqued with Grade 8 fasteners.

In addition to our standard BCG’s we also offer a Chrome option, as well as special edition BCG’s assembled with O.C.K.S. fasteners in place of Grade 8. These optimized screws hold the staking on the gas key even more deeply, further minimizing the possibility of the gas key loosening.

Beyond our standard caliber BCG (5.56mm/.300BLK/6mm MAX), we also offer BCG’s for .308 Winchester, 6.5 Creedmoor, 6.5 Grendel, and 6mmARC

Specifications for Sons of Liberty Gun Works SOLGW 5.56mm/.300 AAC Blackout Bolt Carrier Group:

Manufacturer:	Sons of Liberty Gun Works
Color:	Black
Finish:	Phosphate
Fabric/Material:	Steel
Caliber:	5.56x45mm NATO, .300 AAC Blackout
Gun Make:	AR Platform
Gun Model:	AR-15
Hand:	Right
Condition:	New

Features of Sons of Liberty Gun Works SOLGW 5.56mm/.300 AAC Blackout Bolt Carrier Group:

Carpenter 158 HP/MPI bolt
8620 Carrier
4340 tool steel extractor
Sprinco 5 coil spring
Chrome lined carrier and gas key
Phosphate finish (standard model)
Full Auto Test Fired
Lifetime Warrantied

Package Contents:

Sons of Liberty Gun Works SOLGW 5.56mm/.300 AAC Blackout Bolt Carrier Group

What firearm models does the manufacturer say Sons of Liberty Gun Works SOLGW 5.56mm/.300 AAC Blackout Bolt Carrier Group is compatible with?

The manufacturer says that Sons of Liberty Gun Works SOLGW 5.56mm/.300 AAC Blackout Bolt Carrier Group is compatible with AR-15

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