Stainless steel 12" upper

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PSA 12" Carbine-Length 6.5 Grendel 1/8 Stainless Steel 10" Lightweight M-Lok Upper - With BCG & CH - 5165449009


Quick Overview

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.

WARNING: This product can expose you to the chemical lead, which is known to the State of California to cause cancer and reproductive harm. For more information go to (CA Health and Safety Code Section 25249.6).

SKU: 5165449009
UPC: 5165449009
MFR#: 5165449009

Barrel Length: 12"
Gas System: Carbine-length
Barrel Profile: A2 Style
Barrel Steel: 416R
Barrel Finish: Stainless Steel
Chrome Lining: None
Muzzle Thread: 5/8-24
Chamber: 6.5 Grendel; Type 2
Twist Rate: 1:8
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low profile adjustable gas block
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 10.5" Lightweight M-Lok Free Float Rail
Bolt Carrier Group Included: Yes
Bolt Steel: 9310, Nitride Coated
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes

Add To:

Barrel: 416R Stainless steel. Chambered in 6.5 Grendel, with a 1:8 twist, M4 barrel extension, and a carbine-length gas system. The barrel is finished off with a PSA 10.5" Lightweight M-Lok free float rail, .750 adjustable gas block, and A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized. These uppers are made for us right here in the USA by a mil-spec manufacturer.

Bolt: Full-auto profile bolt carrier group. 9310 steel bolt, Shot Peened, Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec. 8620 steel M-16 profile carrier is nitride treated.

SKU: 5165449009
SKU 5165449009
Department Uppers
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price N/A
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165449009

Questions and Answers

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Browse 25 questions Browse 25 questions and 67 answers
Does anyone have experience running steel case ammo through this?
Ted H on Aug 16, 2018
BEST ANSWER: Yes. They run great. FYI, it is rumored that Russia likes the 6.5 Grendel so much, they might adopt it for their military.
What is the weight of the 6.5 Grendel 12” complete upper?
Chris D on Aug 19, 2018
BEST ANSWER: 3lbs 7oz. This is the weight of the exact same upper with the 12" Nitride barrel.
Anyone know the shoulder diameter for indexing silencer QD mounts off of the shoulder?
Alan L on Aug 12, 2018
what type of mags will this use and will it use the 556 bolt group?
Dawgz90 on Aug 15, 2018
BEST ANSWER: Comes with a 6.5g bcg and will use 6.5g specific mags.

A 5.56 bcg and 5.56 mags will not work for 6.5g.
Will you ship this to California address or does need to be shipped to FFL?
Aaronrey513 on Aug 11, 2018
BEST ANSWER: I believe even in Commiefornia, this can be shipped direct.
Does anyone know the ID of the handguard? I can not find any specs online, need to know if my adjustable gas block will fit?
Ryan m on Dec 5, 2018
Length of Barrel from front of gas block to back of flash suppressor threads?
Smoke on Feb 1, 2019
Is the barrel a true free float?
Bartleyboy4 on Dec 5, 2018
BEST ANSWER: Yes. The barrel is a true free float. The only place the handguard contacts is at the barrel nut.
Will this work with a dpms lower?
Stephen S on Jan 18, 2019
BEST ANSWER: It SHOULD work with any milspec lower, so it should work with your DPMS lower. I am no expert on ARs, but do have some experience buying, selling, and switching uppers and lowers. Only twice in ten or fifteen years, have I had a problem with an upper or lower. The first time was a tight fit, preventing putting the fwd pin in, in with a brand new Olympic upper and an older Olympic lower. The tech at Olympic took the older lower back into his shop and for about ten minutes, carefully sanded and hand fitted the tight upper and lower, which I coud have done myself, if I had thought to do so. The second time, I had a LOOSE fitting upper on a brand new Rock River lower. So I sold the upper to a friend of mine after we found it fit on one of his lowers, just fine, and I had no problems with the Rock River lower on other uppers I had, and still have. I hope that helps, some. JY
Can you shoot steel case through SS barrel?
Lance B on May 11, 2019
BEST ANSWER: Absolutely ! I ONLY shoot steel case Russian ammo through my 6.5 AR15 because I use my 6.5 Grendel for close in self defense type shooting and want the less expensive tactical type ammo. My 6.5 AR eats it like a champ. You have to be careful NOT to forget your caliber and overload your magazines, or the 6.5s will jam. So I have learned to under load the mags by one, or even two rounds, so that the top round does not bind on the bottom of the bolt carrier. There were rumors that the Russians were considering changing over to the 6.5 Grendel round.
what type of bolt group does this 6.5 use?
william c on Jul 21, 2019
BEST ANSWER: This comes with the 6.5 BCG included.
From the description:
Bolt Carrier Group Included: Yes
Bolt Steel: 9310, Nitride Coated
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
What markings are on the barrel? Is the caliber marking visible (or is it hidden by the handguard)?
Adam B on Jun 6, 2019
BEST ANSWER: The barrel says 6.5 Grendel 1/8. It is on top of barrel under handguard, but visible through openings in handguard.
What determines whether it's a rifle or a pistol?
Dennis on Sep 23, 2018
BEST ANSWER: It is a pistol upper unless you want to wait 7-12 months for your SBR Stamp. A 16" barrel is required for a rifle.
So I can build a pistol with this correct?
V L on Sep 1, 2018
BEST ANSWER: Yes, and it's an excellent choice for a pistol. I love mine
How accurate is it at 100 yards?
Stacey K on Aug 28, 2018
BEST ANSWER: Likely, more accurate than you are at 100 yards. With Russian ammunition, not known for long distance accuracy, mine hits the target right on wherever I aim my ACOG's triangle every time. But, in all fairness, I am not interested in 3-500 + yard shooting with this ammo.
What's the max effective range on this 12" upper?
TXZOMBKLR on Aug 19, 2018
BEST ANSWER: 300 - 400 yards; depending on if you agree with 1,000 vs 800 ft-lbs of energy being the appropriate minimum for game hunting.
what type of lower do you need for this upper 5.56 or .308?
Dawgz90 on Aug 12, 2018
BEST ANSWER: 5.56 for the grendel
Does this come the charging handle?
David C on Feb 23, 2019
BEST ANSWER: Yes - the title has “WITH BCG & CH”. That usually means The Bolt Carrier Group and Charging Hand are included. 🤷‍♂️
Anyone know where to get a 12" 4150 cmv / nitride non pencil barrel for this? Other psa upper w/ it oos
Jon S on Aug 1, 2019
anybody have load data they like for this?
Larry E on Apr 5, 2019
BEST ANSWER: Check out the 65grendel forum.
Does psa make any pistol uppers or complete rifle in 6.8? 6.8 and 6.5 pistol uppers or complete are hard to find
Nickg on Jul 3, 2019
Does PSA make an upper like this in 6.8? I wonder why more manufacturers don’t make a 6.5 or 6.8 pistol rifle or upper.
Nickg on Jul 3, 2019
What buffer weight is appropriate for this barrel length?
Damien M on Mar 26, 2019
I just ordered an upper today, but it didn’t give me an estimate when I should be getting it, what’s the average on orders from psa?
Charles S on Feb 19, 2019
Length of Barrel from front of gas block to start of flash suppressor threads?
Smoke on Feb 1, 2019


4.9 / 5.0
34 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Works Great!
The bolts now have a new Lacquer polish Type finish on them same with my 224 valkyrie bolts I like it! They resist dirt and corrosion. No complaints shoots great for a 10" gun.
August 2, 2019
3 months ago
Good upper to shoot
Happy with this upper fit and finish is good
I like the SS barrel and ease of the charging handle with bolt carrier movement
Put a PSA SBR under the upper and makes it a Fun Shooter
July 10, 2019
3 months ago
12 Inch 6.5 Grendel
GREAT package for a pistol. More thump then 5.56 or 7.62 x 39 including the 5.45 "Poison Bullet" in the CHEAP AMMO. Very accurate out to 800 yards. Light and versatile with a Green dot scope with circle reticle and calibrated crosshairs.
Aluma-Hyde paint (I do not like BLACK).
6.5 Grendel with new paint, Leupold MK AR GD, and a flashlight.
June 25, 2019
2 months ago
Very Happy
I waited for this one. Had some cycling issues my first randge trip. However barel still performed well. I sent it back for repair. PSA was very quick I received it within 15 days. Second trip to the range ran 80 rounds no issues & barel still performed well. First picture is 50 yards second picture is hundred yards.
Wolf 100grn 6.5 100 yard zero from bench.
"Cheap no good wolf ammo" 50 yard zero total of 20 rounds.
June 22, 2019
2 months ago
Wish I had purchased one earlier
Hit upon the right load on the fifth try. I use 129 gr sst for hunting (hogs) and they work great.
Also works good with Wolfe 100gr fmj, but not to same point of impact, not so good on hogs unless head shot.
June 22, 2019
3 months ago
Love the 6.5 Grendel
This is not my first purchase from PSA nor will it be my last. I love the little 6.5 pistol and I am looking forward to hunting with it this fall. I've not had any trouble at all with my upper and the fit and finish are great. Thanks again PSA!
June 14, 2019
4 months ago
Very good fit and function
I already own your 7.62x39 upper and pistol lower with SB3 brace and it shoots under an inch with wolf Wpa SP. This 12 inch 6.5 grendel with my very first 3 shots with 123 ELD shot a .43 at 50 yards, and was consistently shooting 2 inch groups with wolf steel. I think this is going to be a keeper. I well definitely be ordering more from you in the future.

Steve T
First shots
First shots
May 14, 2019
My new favorite toy
Never put a gun together before and have wanted a 6.5 Grendel. I couldn’t resist the price. It started a continuous search for lower receivers, lower parts kits, triggers buffer tubes and on and on. Put the barreled upper on a billet seekins lower, Geissele innards and rapid fire trigger, seekins extended mag release and Ambi safety, vltor a5 pistol buffer system and Vltor/bcm Ambi charging handle, cycles fine and shoots fast and straight. Having a little trouble getting the set screw for the gas block to turn but I’ll figure it out. Can’t thank PSA enough for making it happen by simply having a good barreled upper at a great price.
April 7, 2019
6.5 Grendel Upper 12.5”
Ordered online and was delivered pretty fast (compared to previous orders). I haven’t shot it yet but looks comparable to my other AR components from PSA. I like the laser engraved Bolt (6.5 Grendel). Be putting a suppressor on it in a few months. Rounds manually cycle great !!
6.5 Grendel AR upper with 12.5” SS 1/8 upper.   Strike Eagle 1-8x24 scope with Burris PEPR Mount
6.5 Grendel AR upper with 12.5” SS 1/8 upper. Strike Eagle 1-8x24 scope with Burris PEPR Mount
March 12, 2019
7 months ago
Great luck with psa
Love it put cheap leopold ar mod 1 scope and its shoot steel and brass very well sb3 kit also from psa works great with it. best bang for your buck very impressed.
March 12, 2019

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