Centurion Arms Lower Parts Kit

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The Centurion Arms lower parts kit includes everything to build out your Lower Receiver minus the grip and trigger assembly. The springs, pins, and components are made from the highest quality MILSPEC materials and are designed to last. 

1- Selector 
1- Selector Detent
1- Selector Detent Spring
1- Standard Bolt Catch
1- Bolt Catch Plunger
1- Bolt Catch Roll Pin
1- Bolt Catch Spring
2- Takedown / Pivot Spring
2- Takedown / Pivot Detent
1- Takedown Pin
1- Pivot Pin
1- Magazine Catch
1- Magazine Release Button
1- Magazine Catch Spring
1- Buffer Retainer Pin
1- Buffer Retainer Spring
1-Winter Trigger Guard


  • 5
    Updated lpk review.

    In my previous review I stated all the parts seemed loose, I have since tried all the parts in a different lower and they fit just fine, guessing the new lower I'm building has looser specs. But yes, lpk is good to go. Would buy again.

  • 3
    Seems loose.

    Installed on a centurion lower. Either the lower is has slightly out of spec with the holes drilled or the lpk is undersized. The take down pins are extremely loose when pulled out, when closed on the upper it's not an issue, locks fine. Springs are good to go. In all the lpk is fine and will work, but I'd probably go with a geissele or solgw lpk that I've used in the past. Love centurion arms products, was a little underwhelmed by this lpk though. Again, works fine, just prefer the previous lpks I've used over this one.

  • 5

    Excellent parts for a reasonable price. I also appreciate not being forced into buying a trigger or pistol grip, unlike many LPK offerings. Very fast shipping and great customer service, always quickly answering questions via email. Five stars!