Expo Arms AR-15 Small Parts Kit

Manufactured by Expo Arms
Manufactured by Expo Arms
4 Reviews

In Stock

Standard orders will ship out in 1 business day (M-F) if ordered by 3:30 pm CST. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination. NFA items will take longer to ship and are dependent upon ATF processing times.

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Expo Arms offers top-quality MIL-SPEC AR-15 components at rock bottom prices. Made in the U.S.A. and covered by Expo’s Limited Lifetime Warranty against manufacturer defects, material or workmanship problems, and even normal wear and tear!

The Small Parts Kit is an indispensable addition to your AR-15 workbench. Whether repairing your favorite black rifle, starting a new build, or for critical spare parts, this kit has what you need. 

Kit includes:
  • (1) Bolt catch plunger
  • (1) Bolt catch roll pin
  • (1) Bolt catch spring
  • (1) Buffer retainer
  • (1) Buffer retainer spring
  • (1) Hammer spring
  • (1) Trigger spring
  • (2) Hammer/trigger pins
  • (1) Disconnector spring
  • (1) Trigger guard roll pin
  • (2) Takedown/pivot pin detents
  • (2) Takedown/pivot pin springs
  • (1) Safety spring
  • (1) Safety detent
  • (1) Magazine release spring
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BrandExpo Arms
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

4 reviews

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Top quality low price

by -

Thanks again to Primary Arms for delivering top notch products with top notch service for dirt cheap prices. I bought this kit on Thursday and got it Friday before noon. Of course I live in Texas, but the fact that they work so fast is the reason why I will only do business with them! Plus the small parts kit by Expo is top quality. Everything fits perfect! God bless America and God bless the people at Primary Arms.

Great value, good quality finish

by -

It has everything you need for an oops kit, or a new build when you’re customizing the lower parts hardware (bolt catch, safety, trigger, etc) and a nice black finish on all the parts. And the price is right!

Affordable Quality for those on a budget

by -

Building a rifle on a budget, the only way I spend more than necessary is if I'm worried about shoddy quality. No worries here, springs are solid, everything was in the bag, and PA will get it to you quick. Oops kits are important too, so I'll probably end up getting a couple more of these.

just in case


just in case the way things are headed small parts like these may no longer be available