PSA 7.5" .22LR 1:16 Nitride 6" Lightweight M-Lok Upper - With BCG & CH -5165449212

More Views

PSA 7.5" .22LR 1:16 Nitride 6" Lightweight M-Lok Upper - With BCG & CH -5165449212


Quick Overview

free shipping Free Shipping applies to this item only and not the entire order.

It is the customer's responsibility to be aware of all applicable laws and regulations regarding the purchase and ownership of uppers with a barrel length of less than 16". Federal NFA regulations are applicable to this item.

SKU: 5165449212
UPC: 5165449212
MFR#: 516446934
  • Barrel Length: 7.5"
  • Gas System: Blowback
  • Barrel Profile: Heavy
  • Barrel Steel: 4150 Chrome-Moly Vanadium
  • Barrel Finish: Nitride
  • Chrome Lining: None
  • Muzzle Thread: 1/2-28
  • Chamber: .22 LR
  • Twist Rate: 1:16
  • Barrel Extension: Blowback .22 LR
  • Diameter at Gas Block: .750
  • Gas Block Type: N/A
  • Muzzle Device: A2 Flash Hider
  • Receiver Material: Forged 7075 T6
  • Receiver Type: M4
  • Hand guard Type: PSA 6" M-Lok Lightweight Rail
  • Bolt Carrier Group Included: Yes
  • Bolt Carrier Profile: Dedicated .22 LR Stainless Steel
  • Charging Handle included: Yes

Add To:

Palmetto State Armory is proud to announce the Dedicated .22 LR Upper! 

Barrel:  4150V Chrome moly vanadium steel 7.5" barrel length chambered in .22 LR, with a 1:16 twist. The heavy profile barrel has a gas nitride finish for accuracy and durabiltly, and is finished off with a PSA 6" M-Lok Lightweight Free Float Rail, and an A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. Featuring M4 feedramp cuts, these upper upper receivers are made for us right here in the USA

BCG: Dedicated Stainless Steel .22 LR Bolt Group

Magazine: Uses standard Black Dog Machine AR15 - .22LR Magazines.  Magazine NOT Included

SKU: 5165449212
SKU 5165449212
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165449212

Questions and Answers

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 19 questions Browse 19 questions and 31 answers
It seems pretty apparent from the reviews accuracy is a serious issue with this upper. PSA, have you addressed this problem and what have you changed on the uppers that you are currently sending out the door today? I would like to buy one but do not want to have to send it back to have it fixed like many of the reviews state. I would rather wait for a product that is refined- has anything changed yet?
Jeremy on Dec 18, 2018
Can I use this with my 5.56 lower?
Chris D on Aug 30, 2018
Will CMMG 22 AR magazines work with this upper?
Frederick on Aug 30, 2018
BEST ANSWER: Yes, black dog, cmmg, and most other 22lr magazines are the same design. The only magazines that don't function are for the Olympic Arms AR 22lr rifle.
Is this a 7 1/2" barrel? The description says 16"?
Robert M on Aug 30, 2018
BEST ANSWER: 16 in this case refers to the 1 turn in 16" twist rate of the rifling. Barrel length is 7.5"
Do I need to buy anything else to make this work with my complete lower set up for .223?
Brooks on Sep 15, 2018
BEST ANSWER: You will need .22 magazines. Black Dog Machine and CMMG mags will work
Will it fit on an M&P 22 lower?
Cory A on Sep 3, 2018
Will this attach to my 223 lower?
Dante A on Aug 30, 2018
The 7.5 barrel with a AR lower would make this a SBR Right?
richard f on Nov 9, 2018
BEST ANSWER: If it’s on a pistol lower no.
If it’s on a rifle lower yes.
Will this work on a full auto lower?
John L on Aug 30, 2018
BEST ANSWER: Yes, but not in full auto mode unelss you add the anit-bounce weight and auto sear trip as well
Will this fit on an AR15-22 S&W M&P lower?
Jack L on Dec 14, 2018
BEST ANSWER: No, the pins are not in matching locations.
Will this reliably cycle subsonic ammo?
M T on Oct 17, 2018
BEST ANSWER: No issues with CCI or aguila subs!!
What kind of magazine do I use with my 5.56 lower for 22lr?
Madone on Aug 30, 2018
BEST ANSWER: Palmetto sells black dog mags. They work fine.
Does this have a gas block journal so I can mount a cosmetic gas block?
Rob T on Aug 30, 2018
BEST ANSWER: No, it is a smooth profile barrel
How long is the complete upper?
Brayden on Nov 28, 2018
BEST ANSWER: 15 1/8 inches from charging handle to tip of flash suppressor. Thanks Chris.
What type of mags can you use ?
Ivan51567 on Aug 30, 2018
BEST ANSWER: black dog mags. palmetto also sells them
Can this be shipped to California?
Chris on Sep 3, 2018
Is the BCG the heavier full auto type?
Richard W on Aug 30, 2018
BEST ANSWER: I dont think that applies to 22lr BCG, just the 5.56/.223
With the stock fully extended this (my) AR is 26.5 inches long. With the 7.5 inch barrel is it legal?
Steven S on Jan 7, 2019
Will PSA ever make a 10.5in .22 lr slant complete upper (with kak can)? That would be awesome to interchange with my .300.
Michael D on Nov 13, 2018


3.6 / 5.0
18 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Wait and See
I was very excited to add this .22 AR upper to my collection. I mounted the new holosun red dot that I just purchased from PSA. Before heading out to the range I cleaned and lubed the upper . When I got to the range I ran 10 rounds of minimags do range. Everything went perfect. I moved over to the site in range load up 5 rounds federal auto match and she off a bag. I went down range and I had a shot gun pattern. I loaded up again, same thing. This went on for 50 rounds. The gun functioned flawlessly . But I could not get it to zero. I removed the red dot and mount it on my Ruger PCC. I zeroed in 9 shots. I looked it over and everything was tight.
I called PSA and they have it. I really want them to fix it. I was a great running pistol . I hope they can work the bugs out of this design . Waiting for my receiver to come back.
December 15, 2018
I love this little guy!
November 28, 2018
4 months ago
Terrible accuracy
When I bought this upper no reviews had yet been posted. I've shot it once to sight it in and the shots were all over the place at distances of 10 yards and further. Was also using a new red dot sight, so that that might have been the problem. Now I see many others are experiencing very poor accuracy with this upper.

This is the first PSA upper or lower I've ever experienced problems with accuracy wise. PSA, please help on this one?
November 10, 2018
4 months ago
Response from Palmetto State Armory
We do apologize for that. Since all of our parts and firearms are covered by our Unlimited Lifetime Warranty, if you have any issues arise from the craftsmanship of the product, we can either have select parts sent to you for you to replace, or we can have the item brought in, at no cost to you, so we can repair or replace the defective product. Please contact Customer Service so we may resolve this issue.
November 12, 2018
Casey S
Fit great.
Fit easily on my PSA lower. I bought this dedicated 22lr upper to improve accuracy with the 1:16 twist. Still need to check that out at the range.
November 7, 2018
4 months ago
PSA 7.5" .22LR 1:16 Nitride 6" Lightweight M-Lok Upper
While this fit & finish of this unit is excellent, I was unable to shoot groups smaller than 12 inches at 10 yards, regardless of the ammunition I used.I believe that the barrel has the wrong rate of twist for a .22LR bullet. I shot normal size groups with every other firearm I shot, so it wasn't a case of me having a bad day at the range. The strangest thing is that the geometries of the unit are perfect, so it never jammed (a typical problem with .22LR conversion units)- it just wouldn't send the bullets in the same direction twice.
November 3, 2018
4 months ago
Response from Palmetto State Armory
We do apologize for that. Please contact Customer Service so we may resolve this issue.
November 5, 2018
Casey S
Accuracy not great but good value at price point. Has run flawlessly ~800 rnds.
Accuracy isn't great do to fliers. Also experiencing heavy leading in flash hider. Over all a good value for price point despite said issues. Has run flawlessly ~800 rnds.
November 2, 2018
4 months ago
Potentially Great
Purchased late August, sent back to PSA twice,(as of this writing it's still there awaiting a second new barrel). Both original and first replacement barrel gave shotgun pattern like groups at 25 yards- random hits with evidence of bullet tumbling. Didn't slug the bore but suspect it's oversized.

I've purchased 3 other .22LR uppers from PSA: two 16" that are wonderful, and an 8.5" also back awaiting a good replacement barrel.

Would have given single star except for the unexpectedly excellent customer service PSA exhibits in working to resolve these issues.
October 31, 2018
4 months ago
Love love love my 22cal!!!
I love love love this PSA 22cal. It is really fun to shoot. In fact i am writing this review as i am taking a brake in the shade from shooting 250 rounds thru it. I love to shoot plinkers that i made as i move through my course of targets. I love the report of the “PINGGGGGG......” ! This is SO FUN & ECONOMICAL. I now own 5 firearms that i purchased theu PSA and dont see myself really needing another dealer in the future .
October 28, 2018
3 months ago
Great! Works just as described!
October 28, 2018
3 months ago
Buy one. It’s a no brainer
The.l perfect plinking or training upper. Decent accuracy and a lot of fun.
PSA AR 22LR 7.5” Pistol Upper
October 17, 2018
4 months ago

Customers Who Viewed This Item Also Viewed