Sons of Liberty Gun Works Blaster Starter Kit AR-15 LPK - No Grip/Trigger

7 Reviews


Out of Stock


Out of Stock


The Sons of Liberty Gun Works AR-15 lower parts kit comes with almost everything you need to finish building your lower receiver. Also known as the blaster starter kit, the only components missing are the grip and trigger group. Every component in this kit is made to exceed Mil-Spec to ensure ultimate reliability in your AR. The SOLGW bolt catch and spring are cast from AISI 8620 per USGI TDP while the KNS Precision Machine safety and takedown pivot detents are made from hardened stainless steel. Even the magazine release is made from steel as opposed to the commonly used aluminum. High quality materials are what set this LPK apart from the rest. This lower parts kit without trigger or grip is a great way to finish that lower receiver on your workbench and eventually your full rifle.

This LPK Includes:
  • Safety Selector 
  • KNS Stainless Selector Detent
  • Safety Selector Spring
  • Magazine Catch
  • Magazine Catch Button
  • Magazine Catch Spring
  • Bolt Catch
  • Bolt Catch Buffer
  • Bolt Catch Spring
  • Bolt Catch Buffer
  • Takedown and Pivot Pins
  • Takedown/Pivot Pin Springs (2)
  • Takedown/Pivot Pin KNS Stainless Detents (2)
  • Buffer Retainer Pin
  • Buffer Retainer Spring

Sons of Liberty Gun Works is a custom rifle manufacturer in the United States that specializes on the AR-15 platform. They began producing purpose-built weapons for law enforcement and civilians alike and are given a lot of praise for focusing on the details that make an AR reliable. Function over form is what their rifles are known for and they are guaranteed to get the job done. From full rifles to individual parts, you can’t go wrong with SOLGW.


BrandSons of Liberty Gun Works

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

7 reviews



by -

Installed into a Aero lower with no issues.

Solid LPK

by -

The LPK comes in 1 crappy ziplock bag, but the parts are high quality and my kit came with every piece required.

Best No Frills Mil-Spec LPK Available

by -

The Sons Of Liberty Gun Works "Blaster" LPK starter kit is what I believe to be the highest quality kit available under $100. The fit and finish as well as the quality of the materials used are vastly superior to most others. You can do a little better of course, but it will cost you dearly. It's more of a goochie trademark feel good upgrade than a functional one. Buy with 100& confidence because these fit and function perfectly. These are all my buddies and I use in our mid/high-end builds. Buy more than you need because your friends will want to change theirs to these when they see yours. They remind me of old school Colt/FNH quality used in a no BS all business rifle. We love them and so will you!

Good but missing one part

by -

Nice fit and finish for all the parts, I take off a star however cause mine was missing the buffer retainer. Primary Arms was quick to mail me one so all good. Top notch customer service.


by -

Missing buffer stop spring, mag catch cants with lower. Quality under average compared to other LPKs. All pieces cheaply packed in small plastic bag. Will not buy again

Missing a spring

by -

Was missing spring for mag release... primary arms sent another one out fast primary arms..



Top Notch. Everything is in spec and finish is flawless