PSA 8.5" Pistol-length 5.56 NATO 1:7 Nitride  7" 2A Armament Keymod  Upper - No BCG or Charging Handle - 7778434

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PSA 8.5" Pistol-length 5.56 NATO 1:7 Nitride 7" 2A Armament Keymod Upper - No BCG or Charging Handle - 7778434


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: 7778434
UPC: 7778434
MFR#: 7778434

8.5" Barrel Length
4150V Chrome Moly Steel
5.56 NATO Chamber
1:7 Twist Rate
Nitride Finish
Pistol Gas System
7" Keymod Rail
.750 Gas Block Diameter

Add To:

Barrel: 4150 V chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a pistol gas system this barrel features a nitride finish. It is finished off with a 7" 2A Armament Keymod rail, .750" diameter low profile gas block, and an A2 flash hider.

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

Each upper is assembled to order with care, and test fired.


SKU: 7778434
SKU 7778434
Department Uppers
Brand Palmetto State Armory
Daily Deal N/A
Daily Deal Expires N/A
Unit Price N/A
Youtube Video N/A
Free Shipping? No
Free Shipping Qty Label N/A
Free Shipping Qty N/A
SKU: 7778434

Questions and Answers

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4.8 / 5.0
25 Reviews
5 Stars
4 Stars
3 Stars
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1 Star
GREAT upper for the money!
I received my order about a week after submitting it and when received I was actually quite surprised by the quality! This was the first actual firearm part/upper assembly that I had ordered from them but have always heard good things so I was definitely hoping it would arrive and that I would be happy with the quality. I will say that it had 2 small spots where the metal on the hand-guard was a tad banged up which they later credited back my card for! I wasn't asking for a credit but their customer service definitely went that extra mile to make sure I was satisfied. The upper was completely DRY when I received it so I immediately oiled it all up and attached it to the Andersen lower that I had already built for this upper. The fitment was just about perfect but had a tad more wiggle then I like on my AR's so I added an accu-wedge which immediately solved that minor quibble that I have with almost ALL AR's in general. Anyways overall GREAT experience with PSA and the upper has more than 200 rounds through it without ANY stoppages! BRAVO PSA!!
November 11, 2017
You will love this upper.
Waited until this came on sale. Matched this upper with a PSA Premium BCG and PSA lower with Shockwave Support and MRO. This made a great little pistol. Took it to the range and had a blast. This was an extremley accurate little setup. The trigger that came with the lower was good but I had a Geisle ALG laying in my spare parts and swapped the trigger. Very nice and accurate.
December 14, 2016
Overall no major complaints and content with this upper. I recommend.
CONS: (1) The hanguard rail is a disappointment. Flimsy cheap and pointless. They are light but fragile like an egg. I had mine cerakoted and it stll cracked around the 4 weak screws that hold it in place on the receiver. Be prepare to buy a decent hanguard.
(2) Late shipment.... Typical of PSA

PROS: (1) So far no stoppages. 250 rounds (62 grain) 5.56 American Eagle.
(2) Gas tube assembly looks solid and feels solid..

Overall no complaints and content with this upper. I recommend.
November 21, 2016
Excellent upper
This upper is solid. I have a few other PSA products and this one is up to par with the rest of them. For the price you cant beat it. So far it ran well with brass .223. No issues.
November 20, 2016
Functions great but has cosmetic flaws
Upper functions perfect but the 7" 2A Armament Keymod rail has a small dent on the rail and several spots with finish removed. Overall the ordering process and shipping was great.
November 11, 2016
Took longer to ship than usual but not the max that they said it could be but worth the wait looks great haven't had a chance to shoot it yet I need a pistol buffer tube to finish this build
September 3, 2016
Great Upper
Nice finish and looked of great quality when unboxed. Took it out shooting and was so impressed with the accuracy that I bought another and two friends with me decided they needed on as well. Good job on this one PSA!
August 26, 2016
Solid Upper well worth the wait and price.
I purchased this upper for my sons build. Order shipped and arrived within a few days. The finish is very nice. It's a quality built upper. I don't think you could piece this upper together for near what they charge. We mated it to an Anderson lower. The finishes are well matched. Using a Fail Zero BCG and standard charging handle. Took it the range and it functioned flawlessly. Using a Bushnell TRS25 optic we were getting 2" groups at 50 yards. I would definitely recommend. With any firearm parts check them over carefully before firing. This upper was perfect.
July 2, 2016
Perfect pistol upper
My first AR pistol and I could not have asked for anything more. I have almost 400 rounds through it so far and have had ZERO issues. Runs like a beast! Reliable!!!
June 19, 2016
Surprisingly Accurate - Fine finish.
I thought the shorter barrel would compromise accuracy; this was not the case. I also confirmed this with experts. I added a 9x Zeiss scope on it and it shot as well as my stainless .223 Wylde at 50 yards with a benchrest (inside 1/2" at 50 yards). Granted the velocity will/can not be as great as a 161820" barrel you can make up for that by shooting a lighter bullet with a faster powder. This will also reduce the recoil if you are creating a pistol build. I can't find a better value for the price. So after zeroing the iron sights I added a red-dot for a great PDW. I am very glad that I found PSA. Just be patient with the shipping times; these guys are very busy and for a good reason.
June 18, 2016

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