Reliable, versitile, affordable - Matador Arms Mat9 9mm Luger 7.825inch Upper Receiver

Great upper, well designed from a Veteran owned company. Questions get answered quickly from David. Ordered a foldable charge lever and upgraded charging block from HB industries and just love this set up. Can use on multiple lowers (check out Matadors lowers, a little spendy but absolute works of art!) pair with a suppressor and Franklin binary trigger and you have a fun pcc that just eats all types of ammo you throw at it. I bought both the regular Mat9 and the Mat9k and I couldn’t be happier. Super reliable and has an adjustable extractor to use with almost any type of 9mm AR lower or regular AR lowers with conversion block, colt, Glock, MP5, scorpion, you name it if you already have any of these guns set up your lower to work with these mags and bam you can share mags with what you already own. Pretty much the same principle as an HK UMP heavy bolt blowback so there is a little more recoil than a roller delayed system but also a lot more simple and therefore reliable in my opinion. Catch these on sale, use a coupon and some bonus bucks and you will get a steal of a deal and will not be disappointed. The HB industries charging block is a 30$ upgrade that locks itself in place when the bolt is locked back and is well worth it just in function alone. Highly recommended. You can build an entire gun for cheap or Gucci it out either way it turns out awesome.