PSA 12" Carbine-Length 6.5 Grendel 1/8 Nitride 10" Lightweight M-Lok Upper - With BCG & CH - 5165449195

Put this on a PSA ept Pistol Lower and upgraded mag release, safety, and a bunch of other stuff, 1" groups at 100yds with red dot gonna get a scope for 400 yds but mostly will use for pigs in Texas.

It’s shoots really good. Five shots at 100 cover with a quarter. I’m not sure about the gas block. I’m putting a silencer on this week so we will see how good the gas block is.

I ventured into the 6.5 Grendel realm by acquiring the PSA 12" Grendel upper. I use Wolf 100 grain ammo only. At 100m I am shooting 2 MOA or better. To keep this short I find the PSA Grendel upper to be free of any issues. IMO the 6.5G cartridge should be the issue caliber of all DoD long arms and LMGs.

Need to find ammo that will shoot accurately in it !!!

Great deal for a complete upper. Everything is to spec, no complaints from me.

I ordered my psa upper in February and got it by March after shooting the gun with their barrel break in procedures I could not hit anything the best group at 50 yards was a foot and a half ! I called and sent it in took them over a week to replay and not it’s been over a month since they got my upper back to inspect it ! Iam disappointed with the serving and the product psa has offered me ! It asks me to put a photo of the gun for review but I can’t because I still don’t have the gun !

Best AR style pistol! Nitride looks better than stainless along with the fit and finish, it's excellent! Highly recommend! Wait for a good PSA sale before buying!!!!! MOA accuracy out to 100+ yards. 6.5 Grendel is far superior than 5.56 no matter which barrel length you use. Get a good (southern precision) muzzle brake because if using a shockwave blade....and a t-shirt, you will get bruised!

This thing worked right outta the box with Anderson and Spikes lowers.
Shoots pretty tight too.
Great all purpose AR pistol upper

Just got my upper in today. I noticed the flash hider was on so tight that it actually started tearing into the crush washer, thin metal shavings are protruding in between the crush washer and the flash hider. The hex screws in the hand guard were loose, I tightened and applied loctite. The upper reciever itself does not seem milspec and is missing forging marks; it is a few mm thicker when I compared to all my other uppers. I noticed the receiver was off when I went to put my pof rattler charging handle in it and it took some force to get it in. When I went to put the upper on my anderson lower, my bad lever was engaged; making it so when I pulled the bolt back it would lock the bolt to the rear. Again pointing to the fact that this receiver is out of spec because it was so thick it engaged my bad lever. Dont get me wrong, the upper fits on a lower I just had to take my bad lever off my lower. Also the anodizing on the dust cover was crystallized. I love PSA but not impressed with this upper cosmetically. I will see how it shoots to if i would like to return it. I will update my review after i visit the range.

I was looking to build a short barreled 6.5 Grendel, found this upper at a price point to good to pass up.
love the nitrated barrel and that it came with a adjustable gas block.
I did some parts swapping to turn it into what I wanted.
I replaced the handguard with a 12"er and swapped the bolt over into a light weight BCG and gave it a good muzzle brake.

I now have 400 rounds through with no malfunctions.I love the size. It works great with low pressure suppressor.

Not PSA's best effort. Chipped anodizing and burrs on numerous places. Flash hider flats distorted by wrench. Gap (3/16") between receiver and handguard. White lithium grease left under handguard. Returned unit for refund.

Shoots well. Poorly assembled. Gas block set screw was cross threaded (Making the gas block non-adjustable). Hand guard Twisted off on its own (one screw way over tightened, one barely attached). Gas key is nicely staked. I can guarantee a torque wrench was not harmed in the assembly this product. PSA Offered a return (of the upper) but having read about dodgy accuracy I declined as I thought having a good barrel Trumped gas block adjustability, And I didn’t want to gamble on getting A barrel didn’t group as well. I was hoping they would send me a non-jacked up replacement gas block but no dice…

This is my first grendel and my fourth PSA upper along with a handful of PSA lowers. I mated this to a PSA polished trigger lower with SBA3 brace and have put about 500 flawless rounds through it. It is a tack driver with comparable accuracy to many of my 16 inch Ar's.

No issues, ran great. First outing was with Wolf steel, good groups at 50 yards, soft shooter once gas block was dialed in. Nitride BCG looks high dollar. Another winner from PSA.

Overall quite pleased. This upper shot well; it handled the "cheap" wolf 100gr ammo better than builds using another OEMs 18" & 20" barrels. The only ding is that the adjustable gas block came with no instructions. Had to google it and then both adjustment screws were pretty much stuck (don't know if they are using loctite on them once set?)-it cycles fine but couldn't really make much adjustment to test it out. As a plus the only other 12" option is about 85% the price of this complete upper for just the barrel.

Would recommend, I want to buy one for my son, his lovely wife 'mother of the most wonderful grandson on earth!" And many ones for my nephews wife, he is again, in service to his country, and I 've never gotten her anything nice.

Runs flawless on PSA pistol lower. Makes a great hunting rig

I have been impressed so far. The gas block adjusted easily and I was getting 2” groups at 50 yards with a red dot using Wolf, that is probably about as good as I can see.

I have purchased MANY PSA uppers and never disappointed. This is one of my favorites. Hornady SST are giving me 2330 fps and 1-1.25" groups at 100 yards. I mounted a Vortex Crossfire 4-16x42 (1st gen). I will say the percussion is LOUD! I have a forward concussion brake on order. Get job PSA!

Quick delivery, packaged well, quality build, highly recommended.

Looks like someone banged away at the BCG with a jack-hammer.

Love this thing, it has become my favorite Ar to shoot by far. Eats wolf steel cased no problem.

Since I already have a full-size 6.5 Grendel, I mated the short 6.5 upper with a PSA AR pistol lower. It now carries a 6X Swarovski, and it's a very portable long range "pistol."

During site in a 2.5 x PA scope, I initially had some FTE events (under gassed), during the first 30 rounds, next 20 rounds went OK. I fired 100 gr Wolf steel ammo. The unit has a adjustable gas block. I loosened the silver screw on the side (locking screw) with a 1/16 hex head.
Then turned the screw on the front of the block out 1 to 1.5 turns out. Locked the sliver set screw down. Shot 40 rounds by putting two round into a mag. All rounds fired ejected and locked back each time. I am very pleased with the upper and plan on using it for deer hunting.

I live in Florida so I hog hunt this gun is great for that. I’m getting 1” groups at hundred.

I took off one star for not having any instructions for the adjustable gas block. Small screw won't screw all the way in either, but maybe it doesn't need to. IDK no instructions. I took off three stars for the rough chamber walls. Chamber scratches up the brass it's so rough. It leaves about a dozen rings on the case.

Just received my order, haven't even put it on my lower yet... seriously(?)...you're gonna ship this out? Looks like someone beat the crap out of it with a hammer.

It's not even broke in yet and its producing near 1 moa with hornday black and American gunner. 2 moa with wolf. At 100 yards. Very happy with it.

I’m giving it 5 stars because it’s great for what it is. You want match grade go pay more. I built mine with a pistol lower. Wrist support type. Built it for close quarters. At 25 yrds it puts all 5 of my reloads in single hole groups. As anything without issues should. At 100 yrds I was holding them at 2” or less. I’m using a non magnified red dot. It ran flawlessly. Not one single issue. What more do you need.