Good evening, I am brand new to the forum and need a little advice/recommendations. I have built several Ar-15 rifles, but I am currently trying to build an Ar-10. I bought a PSA PA-10 gen II completed lowering sale a while back, but by the time I had the funds to build the upper they had discontinued the gen II receivers. I want to just get a stripped upper so I can build it and customize it. I know there isn’t a whole lot of compatibility between different brands in the AR-10 market, so my question is does anyone here know of any other upper receiver brands that would work on a PA- 10 lower or do I need to just start completely over?
- Thread starter Tgself1
- Start date
PSA PA-10 is technically a unique pattern. No other upper manufacturer has been a reliable match that I've heard of. Bore alignment is the biggest issue. The PA-10 gen 3 upper will work with a gen 2 lower, but there are cosmetic differences.
I believe PSA has a blog or forum linked on their site that probably has some answers but you'll have to do a lot of reading. Also they will answer your questions directly about compatibility between generations of their products, don't know about other companies' products.
Thank you! Can you recommend any budget friendly options that have better availability than psa?
I'd get an aero M5 builders set with receivers and hand guard, then browse the forum classifieds for the rest.
