Luth-AR A3 Upper Receiver Parts Kit

Manufactured by Luth-AR
Manufactured by Luth-AR
6 Reviews

In Stock

Standard orders will ship out in 1 business days or less if ordered by 3:30 pm CST, Monday-Friday. 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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Luth-AR LLC, known for the lightest and most affordable adjustable buttstocks, bring you innovative and exciting AR parts and accessories, all made in the U.S.A.

The A3 Upper Receiver Parts Kit contains everything you need to assembly the forward assist and ejection port door cover for MIL-SPEC AR-15 upper receivers.

Kit includes:
  • Ejection port cover
  • Ejection port rod
  • Ejection port c-clip
  • Ejection port spring
  • Forward assist button
  • Forward assist spring
  • Forward assist pin
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TypeUpper Parts Kit
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

Ratings & Reviews

6 reviews


Couldn’t use it


Bought this kit and the “e-clip” was missing of the rod for the dust cover. It rendered the dust cove useless

Inexpensive no frills parts kit that does the job.

by -

All the parts fit well and the 'C' clip was already attached to the hinge pin.

A great upper receiver parts kit!!

by -

All parts needed were included. Went together in a snap. Easy!!!

Good enuf

by -

Forward assist and all of the smaller parts looked to be of good quality despite the low price. Dust cover did not seem to match the same level of quality. It had a poor finish and was covered in dried cosmoline. Dust cover was also bent so I had to bend it straight to get the rod through. Dust cover detent also sits a little high so it takes some extra effort to close. Once everything was installed, looks good enough. 1 star for the dust cover, 5 stars for everything else. 4 stars overall.

Economical Upper Parts

by -

This kit worked and installed well. The dust cover had a slight bend which straightened easily in 3 seconds by hand. The finish is satisfactory after a clean and oil prep. For the price it is a fine kit.

great Cover!!!

by -

Third time the charm. getting better installing these parts look very good on my lover.