Description
The Phase 5 Weapon Systems A3 Flat Top Complete AR-15 Upper Receiver is a solid building block for your next AR.
- Flat top upper receiver, complete.
- Mil-spec type III hard coat anodizing
- Precision machined to M16/M4 specs
- M4 feedramps
- Includes: Forward assist assembly, ejection port cover assembly.
Made in USA
Thomas McNeill –
Awesome, I love the chat feature makes it very easy! Thank you
Brandon H. (store manager) –
The Phase 5 upper I bought and received is of very high quality. The fit and finish is some of the best I have see. Being that I am disabled and on a fixed income I am very careful and choose very carefully what I buy as I am only able to buy once. And after searching and seeing reviews the Phase 5 upper was what I chose and I would say to get anything better would be going the milled receiver route.
David W. (store manager) –
Product was flawless as expected. MSR Arms shipped same day I ordered!
Jesse A. (store manager) –
Well it fits the lower I have just fine and haven’t had a problem with the installation. Also the shipping was very fast so I was able to get my hands on it quickly. The customer service is excellent and I would definitely buy from here again.
Brian C. (store manager) –
Fit and finish was nice. Arrived in a timely manner as well.
Michael D. (store manager) –
High quality upper receiver. I am very happy with it, working out great.
Tyler Dahlgren (verified owner) –
Na