Aero Precision AR 308 Upper Parts Kit

Manufactured by Aero Precision
SKU: APRH101237
MPN: APRH101237
Manufactured by Aero Precision
5 Reviews

In Stock

Orders of non-FFL items will ship same day if ordered before 3:30pm CST (M-F). FFL orders will ship within 5 business days if transfer details are provided.

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The Aero Precision AR 308 Upper Parts Kit includes everything you need to install a MIL-SPEC forward assist assembly and ejection port cover assembly for your stripped upper receiver. Complete your Aero Precision M5 or other DPMS pattern AR-308 receiver with the Aero Precision AR 308 Upper Parts Kit.

Kit includes:
  • Forward assist pawl
  • Forward assist spring
  • Forward assist roll pin
  • Ejection port cover door
  • Ejection port cover rod
  • Ejection port cover c-clip
  • Ejection port cover spring
  • Weight: 1.5 oz
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BrandAero Precision
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

5 reviews

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Attention to detail from Aero Precision

by -

Aero Precision parts are exactly what you need for your next build. The fit and finish of the parts are unsurpassed. You can’t beat Aero Precision!

I got a used door

by -

Everything fit and works the front assist looks good but the ejection port door I got is all marred up with a weird oil all over it if it wasn't for that I would give 5 stars

aero upper parts kit

by -

nice fit and finish

I got a demo or returned dust cover, rust on detent pin couldn't open after installation.

by -

Everything works and was there I like how they have threaded roll pins, but my dust cover was all marred up and even had rust built up on the detent pin. I had to of gotten a demo or returned dust cover I couldn't even rack my charging handle after I installed because the pin was just rusted shut. After cleaning it with CLP and adding some Hoppes #9 was I able to get the dust cover to open and close and it's still a little tough. Now if it was just marks and oil from the manufacturing process it'd be whatever but the door not opening because of rust is not cool. I like Aero I tried to get mostly Aero parts and I'm not sure who would be at fault I think PA because I've never had this issue with any of my other Aero parts.

I was happy to get you taken care of on this matter. Please keep an eye out for an email from us on this.

Update on previous 1 star review


After posting my 1 star review customer service called me pretty quickly after and told me that they receive these parts kits directly from Aero Precision and do not inspect them and offered a replacement or a refund for the mishap. I gotta say that is some seriously impressive customer service, some of the best I have ever seen to be honest and even though my item wasn't perfect I am completely satisfied and would highly recommend Primary Arms in the future you can count of them to correct the situation.