Both are about the same. I have the TRS-25 on my wife's rifle, and I used to run it on my 870. It's very good for the price. Check eBay. You can almost always find them for $70ish.Well I'm pretty sure Linton Wal-Mart has the TRS25 on an AR high rise mount for like $109,I could price match this for $89.I just wanted to see if it would be worth it or if I should just order the PA model.