Due to higher than average order volume, please expect shipping times to be delayed up to 10 business days. Please expect longer wait times for Serialized items (FFL required).
Due to higher than average order volume, please expect shipping times to be delayed up to 10 business days. Please expect longer wait times for Serialized items (FFL required).
PSA 10.5" CHF Carbine Length 5.56 NATO 1:7 Geissele 9.5" MK14 M-Lok Upper - No BCG or CH

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PSA 10.5" CHF Carbine Length 5.56 NATO 1:7 Geissele 9.5" MK14 M-Lok Upper - No BCG or CH


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: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

SKU: 5165490534
UPC: 5165490534
MFR#: 5165490534


Barrel Length: 10.5"
Gas System: Carbine Length
Barrel Profile: A2 Style
Barrel Steel: Cold Hammer Forged Chrome Moly Vanadium
Barrel Finish: Phosphate
Chrome Lining: Yes, bore and chamber
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Geissele .750" Super Gas Block, Pinned to Barrel
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: Geissele 9.5" Super Modular MK14 M-Lok Rail
Bolt Carrier Group Included: No
Bolt Steel: N/A
Bolt Carrier Profile: N/A
Charging Handle Included: No
Overall Length: 19"

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Barrel: Barrel is made for Palmetto State Armory by FN Manufacturing using their proprietary blend of hammer-forged chrome-moly vanadium that is referred to as "Machine Gun Steel" by virtue of its use in FN's M249 and M240 weapons. The hammer forging process work hardens the steel, making it more durable. In addition, the chrome process for the bore allows for a lining almost twice as thick as a standard M16 for enhanced durability. Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension with extended feed ramps, and a carbine gas system. The barrel has an A2 style profile, is Mil-spec phosphate coated, and MP/HP tested. The upper is finished off with a Geissele .750" diameter Super Gas Block drilled and pinned to the barrel, A Geissele Super Modular MK14 M-Lok 9.5" Rail, and an A2 flash hider.

Geissele Rail: The MK14 is the latest entry to the Geissele line-up of Super Modular Rails. The new handguard design offers a smaller diameter and overall height to create a slimmer package. Included with the MK14 Super Modular Rail is an updated version of the proven Geissele Barrel Nut design, not only providing ease of installation but superior rigidity. The long surface contact of the 2.25” barrel nut interfaces with the receiver creating a platform that can be trusted to be straight and true the entire length of the free float rail. The MK14 is 3d precision machined using 6061-T6 Aluminum due to its strong, rigid and lightweight properties. 

Utilizing Magpul’s M-LOK technology in the 3, 6, and 9 o’clock positions allow the end user full customization and modularity of their rifle to securely mount lights, bipods, and other firearm accessories. The Geissele MK14 Super Modular rail is finished in a durable and long-lasting Type 3 Hardcoat Anodized

Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. 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.

Upper Does Not Include BCG Or Charging Handle

SKU: 5165490534
SKU 5165490534
Brand Palmetto State Armory
Department Uppers
Daily Deal No
Daily Deal Expires No
Unit Price No
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165490534

Questions and Answers

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Browse 21 questions Browse 21 questions and 60 answers
Will you ever be offering a 11" or 11.5" CHF stripped/bare barrel for AR builders? If so, put me down for (2)!!
Adam G on Sep 27, 2019
PSA 10.5
PSA 10.5" CHF Carbine Length 5.56 NATO 1:7 Geissele 9.5" MK14 M-Lok Upper - No BCG or CH
PSA CHF 10.5'' 5.56 NATO 1/7 Carbine Length A2 Profile Barrel
PSA CHF 10.5'' 5.56 NATO 1/7 Carbine Length A2 Profile Barrel
Gas block is pinned?
Roland on Jul 24, 2019

The gas block is pinned.

Best Regards,
(Name Redacted)
PSA Customer Service
is the flash hider pinned and welded?
Ernesto on Jul 30, 2019
BEST ANSWER: The last thing I'd ever want is to pin and weld the end of my rifle preventing my ability to service the gas block. No, it's not pinned and welded. The only time that's done is when a barrel needs to reach the minimum length of 16" to be considered a "rifle" upper. If attached to a pistol lower such as one with an SBA3 brace, this upper in its current 10.5" configuration is completely legal.
I bought one of these a couple years back and my upper had an A forgery marking on the upper. I’m interested and buying another I love mine and it’s a great deal. But my buddy just bought one of these and his upper receiver has no forgery stamping is that how they are being shipped now? Thanks
Arnaldo on Oct 25, 2019
I bought three (3) of these uppers two months ago (SKU ending in 8075) and the Geissele Super Gas Block IS NOT Pinned to Barrel like these new ones. If I want the pinned version can I exchange mine? I haven't put mine into service yet.
Peter S. on Jul 25, 2019

We are not offering exchanges between pinned and non-pinned models.

Best Regards,
(Name Redacted)
PSA Customer Service
Can anyone from PSA please answer/clear this up for me? Is the the Overall length of 19" including the A2 flash hider, or is the 19" from end of barrel/threads? Thank you very much for clearing this up for me.
Gary on Aug 12, 2019
BEST ANSWER: If your muzzle device is permanently pinned and welded that’s the only time you would start your measurements from that point. Check out this video from kotaboy32 in YouTube. He does a detailed break down of your question. https://youtu.be/IqkDlitW0v8
I see the gas block is now pinned. Is the barrel dimpled also?
david a on Aug 23, 2019
BEST ANSWER: no, it is not dimpled according to PSA themselves.
Does this upper come with the barrel nut tool in case I want to remove barrel?
ROLANDO V on Oct 31, 2019
BEST ANSWER: Mine did not, but you can use the spanner portion of most AR wrenches and it works. I used my Tapco to loosen my barrel nut.
Would this upper fit a troy lower?
Deweyh on Feb 21, 2020
BEST ANSWER: I’m not familiar with a Troy lower but I believe it will fit any brand mil spec lower. I have had it on a couple of other lowers and it works on all of mine.
Is this a pistol upper or rifle?
Milan W on Oct 18, 2019
BEST ANSWER: Both....It's an upper. You can put it on a "pistol" lower or on a "SBR" lower if you have one.
Do you recommend an H2 buffer with this setup?
Mike T on Feb 27, 2020
BEST ANSWER: i run it with an H buffer and it runs amazing.
I bought this a few months ago. There isn't a forge mark on the upper. Why is that? Who makes it?
david a on Feb 20, 2020
BEST ANSWER: PSA makes it. They are a vertically integrated company that makes much of their own stuff except where otherwise stated. So in this case the forging was PSA and the rails were Geissele.
If I put a SBA4 brace on with this upper will it still be legal?
Austin G on Aug 26, 2019

Please check your state and local laws before configuring a firearm.

Best Regards,
PSA Customer Service
What is the gas tube made of?
david a on Aug 19, 2019

The gas tube is made of stainless steel.

Best Regards,
PSA Customer Service
Is the upper marked with psa logo?
TacoBill on Jul 24, 2019

Depending on the batch, it may or may not have our logo. We cannot guarantee it either way.

Best Regards,
(Name Redacted)
PSA Customer Service
What are the barrel markings on this model?
Brandon K on Jul 24, 2019
BEST ANSWER: Original batch from last month has FN logo HF MP 5.56 NATO 1/7. I can't believe this batch would be different.
Will the BCG and charging handle from a Ruger 556 fit this?
GREGORY F on Jan 4, 2020
BEST ANSWER: It should. Check the head space.
Is the gas block adjustable?
ScottyB on Aug 26, 2019

No, it is not.

Best Regards,
Palmetto State Armory Customer Service
Does this come with a Geissele gas block?
Dixie Normous on Feb 28, 2020
When are these coming back in stock ?
Carlos on Feb 14, 2020
what bcg and charging handle matches this upper?
DeAndre B on Jan 8, 2020


4.5 / 5.0
41 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great for all-day usage
This is my go-to upper for classes. Mind you you will need a blast mitigator or suppressor to use it indoors due to the shorter barrel length. I found this length and weight to be ideal for repeated up and down drill usage.
March 21, 2020
8 months ago
Buy it, do it. Your welcome
What can I say, this is one of my favorite to shoot. Seriously like a tac driver. Added Gamma VG6 muzzle break, toolcraft BCG, Giessele Super Charging Handle and put it on a PSA pistol lower with EPT. Shoots like a dream. Don't think, just buy it!
User submitted image
Added Mar 19, 2020
March 19, 2020
2 months ago
Top tier upper for sub $500
Awesome deal! FN CHF barrel, square forge M4 upper, Geissele rail and pinned gas block!
March 17, 2020
2 months ago
Great SBR upper
Looks good, finnish feels smooth.
March 1, 2020
3 months ago
I give it. A 10
I love the upper for the price and parts. When I get the money. I will buy another one.
February 11, 2020
3 months ago
Good value - changed muzzle device and buffer weight
Nice complete upper. The handguard is nicely finished and compact allowing for an easy c-grip. I removed the A2 flash hider before firing the complete gun. It was replaced with a Smith Vortex G6A3. I couldn’t see any muzzle flash under normal lighting at my indoor range. I didn’t try the standard buffer weight that came with the SBA3 set, but instead tried both a H and H2 buffers. H buffer was ok with consistent ejection at 3 o’clock. Keeping the H2 buffer in there as ejection was between 3-4:30 o’clock.
User submitted image
Added Jan 18, 2020
January 18, 2020
Love the quality!!!
This is my first pistol build. I wanted to build something low profile, sleek and simple. I would consider this my primary weapon and I realistically expect this to preform optimal from 0-200yds; although it's hard for me to see past 100yrds with irons. I have not shot her yet so I can't quote anything on it's performance.

It's a PSA Lower with a

- SBA4 /Magpul /PSA EPT lower parts kit.

-This upper of coures 5165490534

- PSA (No Logo) Nickel Boron BCG

- Radian Raptor SD-SL Charging Handle

- Magpul MBUS set

- Vickers Padded Sling with Midwest Industries Heavy Duty Flush Push button QD ends

-Primary Weapons Systems Ratchet Lock Castle Nut and QD Endplate
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January 17, 2020
Super clean, tight fitment, lightweight, everything lines up perfectly, and great looking. Only 4 stars for I have not shot it yet.
December 31, 2019
5 months ago
Great buy!
Great quality upper for a great price! Another win from Palmetto.
User submitted image
User submitted image
December 22, 2019
SBR with all the fixin's
I have really enjoyed putting this SBR together it's a real shooter 1/4" 5 shot groups with the Aimpoint red dot.
SBR with all the fixin's
SBR with all the fixin's
December 15, 2019

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