PSA 7" Nitride 1:7 Pistol Length 5.56 NATO Marauder AR-15 Upper Assembly, Black - No BCG/CH

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PSA 7" Nitride 1:7 Pistol Length 5.56 NATO Marauder AR-15 Upper Assembly, Black - No BCG/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: 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: 7790284
UPC: 7790284
MFR#: 7790284

7" Barrel Length
4150V Chrome Moly Vanadium barrel
5.56 NATO Chamber
1 in 7" Twist Rate
Forged Upper Receiver 
Nitride Barrel Finish 
PSA patent pending muzzle device

Magpul "MOE" carbine length M-Lok handguards

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Introducing the new “MOE Marauder” pistol upper exclusively from PSA!  The MOE Marauder upper is designed to function with a red dot or holographic optic.  It does not have provisions for a front sight to be mounted on the barrel.   The perfect upper for your registered AR-15 SBR or AR-15 pistol!

Barrel:  7" 4150V Chrome Moly vanadium steel, nitride treated for durability and chambered in 5.56 NATO with a 1 in 7" twist. Pistol length gas barrel is finished off with a Magpul MOE M-Lok carbine length handguard, a low profile gas block and a patent pending PSA muzzle device designed to hold the handguard endcap in place.

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.


SKU: 7790284
SKU 7790284
Department Uppers
Brand Palmetto State Armory
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: 7790284

Questions and Answers

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Browse 64 questions Browse 64 questions and 160 answers
can you install a carbine length quad rail to the psa marauder?
cesar on Apr 21, 2018
BEST ANSWER: Yes you can. I have a drop-in 2 piece carbine length quad rail on mine.
When will they be back in Stock?
George U on Feb 7, 2019
BEST ANSWER: They’re back now. I just ordered one 5 minutes ago.
Any chance this exact configuration will ever be available in .300 AAC Blkout?
Tyler on Feb 2, 2019
BEST ANSWER: I want one when 300 BO IS AVAIL!!
Can you remove the flash hider and install a different one?
Bryce H on May 8, 2018
BEST ANSWER: Yes, it is removable, but in my honest opinion it looks super cool with the flash can and for me was a huge selling point. If you want a different muzzle device, just go with other great options that PSA offers. Would be much easier to switch out a muzzle device on one of their other pistol uppers
ETA on when this will be back in stock?
Gunnar D on Sep 26, 2018
BEST ANSWER: Right now. I just bought one.
What size buffer weight are y'all running?
DANIEL H on Jun 7, 2018
Not having BGC does it need
To be sent through a FFL to receive it?
William R on Aug 30, 2018
BEST ANSWER: This is an upper receiver. Upper receivers never need to go through an FFL regardless of whether or not they come with BCG. Only lower receivers need to go through an FFL since they are the part with the serial number.
What is the overall length?
How long is the flashcan?
Rhino on May 9, 2018
BEST ANSWER: If you install on lower with a KAK Shockwave brace it measures 24 inches
When do you get these in?
Bernard D on Dec 28, 2018
BEST ANSWER: 2 years ago
What am I going to need to complete the upper?
Cody P on Aug 19, 2018
BEST ANSWER: You will need a bolt carrier group and charging handle. Also what ever optic you want to run on there. I opted to do the psa bcg and charging handle and have been pleased with its performance
what buffer weight are you guys running in this upper?
Daniel h on Jun 8, 2018
BEST ANSWER: I use a H2 buffer. It is heavier and slows down the bcg. Also helps with some of the recoil. The buffer had two steel weights in it. Makes it a lot heavier than the standard carbine buffer.
What type of grouping are you seeing out of this upper?
Ryan J on Jun 11, 2018
BEST ANSWER: That was my question as well before I purchased it. I was very surprised. It performs very well. I sighted it in at 50 yards. I have not fired it farther yet. However, at 50 yards my group was a half dollar size groups if properly stabilized and fired with strict trigger control and sight alignment. I recommend.
Own this upper and is paired with a BCM lower AR pistol receiver with BCM BCG and Radian charging handle. Used H, H2, and H3 weights with 3 different springs and 2 different types of ammo and cannot get it to cycle. Any recommendations ?
Doug S on Oct 14, 2018
BEST ANSWER: if it won't cycle with an H buffer than it's more than likely the gas system. I would check the gas block to barrel interface, it may be twisted and not allowing enough gas thru the gas tube.
Is this California legal?
Dicky on Apr 25, 2019
Can the PSA muzzle device be purchased separately? I've looked on the site and cannot find it
Steven O on Apr 23, 2019
Does this muzzle device throw a fireball, or does it hide the flash?
RangeToys on Aug 11, 2018
BEST ANSWER: The muzzle device this item ships with is set up to hold the hand guards on as well. To answer your question, yes it throws major fireballs. It’s a good range toy or my use for it is a SBR to keep in my dozer where I work for eradication of varmits and predators. It functions flawless and looks neat.
Will this upper shoot .223 as well since I have a multi lower ?
Corey G on Apr 7, 2019
BEST ANSWER: yes anything that is chambered 556 will shoot 223. The physical dimensions are the same the only difference is the 556 has a higher compression and thats why u don’t wanna shoot 556 through a 223 barrel. Hope this helps. Google is always a good resource just don’t believe one article fact check with more than one resource.
Can you swap out that moe handguard to magpuls new SL handguard or would strike industries 2 piece handguard fit there?
Daniel K on May 19, 2018
BEST ANSWER: most hand guards are interchangeable, though some may require their own barrel nut to proper fit
Can you make the handguard in olive drab green?
Gooseman on May 7, 2018
BEST ANSWER: Usually the special Palmetto offers is the exact one that is showed on the email you received.
Different colored handguard most likely will be different price but to be sure you would have to call Palmetto customer service on the Olive Drab colored handguard price.
Is the gas block adjustable? If not what size block is needed?
michael s on Mar 27, 2019
BEST ANSWER: It has a pistol length gas system that is not adjustable. I’ve run this upper unsuppressed and suppressed with ZERO issues. It’s a fun little rig for a truck or side by side.
Can you ship this to me in ca.?
javier s on Apr 22, 2019
Will 223 function?
Buddy on Jun 7, 2019
BEST ANSWER: Yes. I have shot multiple types of .223 and 5.56 through it. Only issue was with firing tulla rapid, had 2 failures in 1 mag. Pretty sure it was the ammo and not the gun.
If I buy a BCG can it be dropped in or is there some type of headspace adjustment needed?
Tapin on Jun 6, 2019
BEST ANSWER: just drop it in. If the rifle has been firing fine it will continue to fire fine. Only time you “MIGHT” encounter a headspace issue is if the barrel is not properly seated. And that is almost impossible to do.
Can i use the bcg/ch out of my psa ar15 pistol 10.5 inch setup?
Charles w on Aug 7, 2019
BEST ANSWER: How much use has it had? I mean you could if it had low use. But i would recommend you buy a new one.
Anyone shot this with a standard carbine buffer? How did she do? Should i get a heavier one?
Michael W on Jun 8, 2019
BEST ANSWER: Ive shot with both. The carbine buffer was just fine but the heavier buffer did take a tad off the recoil. As far as I can remember I stuff have the carbine buffer in the pistol, it's a truck gun anyway.
Can you put a suppressor on It?
Phil J on Nov 27, 2018
BEST ANSWER: You can't with that muzzle device, It's made to hold the handguard on and isn't threaded. You would have to get a different handguard that is free floated and remove that muzzle device. You would probably be better off buying a different upper if you want to use a suppressor
Does this purchase come with a butt stock and buffer/buffer spring?
Michael F on Jul 1, 2019
BEST ANSWER: No, upper assembly only ( assembled upper, barrel,handgaurd,muzzle device, gas block and tube ). Does not come with the bcg or charging handle. Slap it on a complete lower and a BCG and charging handle and you are good to go.
This will fit on any psa AR lower?
Sean R on Jul 1, 2019
BEST ANSWER: It should, threw it on a (PSA AR-15 COMPLETE MOE EPT PISTOL LOWER WITH SB TACTICAL PDW PISTOL BRACE) and haven't had a problem yet
Any color options?
Budda on Jun 2, 2019
BEST ANSWER: Just like Henry Ford, you can have any color you want as long as it's black... The handguard is super easy to change out if you want a different color.
How long does this take to recieve?
Lowlife on Dec 7, 2018
BEST ANSWER: I'm sure this is mostly influenced by your location in the country. I live in the western US and it took 10 business days for it to arrive, however it has been worth every day and every penny! Super fun addition to my collection!


4.8 / 5.0
249 Reviews
5 Stars
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3 Stars
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1 Star
Awesome scary
Snowflakes auto trigger...
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Added Aug 21, 2019
August 21, 2019
1 month ago
Awesome Upper pistol!
I bought this upper and assembled it on a PSA lower. The assembly shoots well and isn't loud at all with the short barrel and muzzle device combination. I love it!
August 20, 2019
2 months ago
Everybody needs a pistol.
Way cool, very good quality (of course, that's the norm for PSA!) Everybody needs a pistol around the house.
August 20, 2019
2 months ago
I’m impressed
New to the whole building thing. Figured I would get this as the price was right. Threw a poor boi Bushnell red dot on it and sighted it in at 50 yards. Holds a pretty tight group at 25 and under, spreads out a bit at 50 but still well within a 8” square. I’m impressed with the groupings I've shot so far. Cycles nice, and I didn’t use the H2 buffer I had purchased . Would definitely recommend if doing a budget build.
August 16, 2019
2 months ago
Great upper.
Extremely loud but pretty accurate. This was my first pistol build and I really like the looks and compact size of this. The can looks mean.
Love this thing. Hearing protection is a must. This thing is extremely loud.
Love this thing. Hearing protection is a must. This thing is extremely loud.
August 13, 2019
2 months ago
Great Looking Barrel and Fun to Shot
I love the look of this barrel. I liked the look when I ordered it and was even happier when I received it. I bought it just to have some fun with one of my Pistol builds and have not been disappointed. My sons love the way it looks and think it is cool to shot. I am thinking of getting another in FDE just because I like the cool look. One thing is that you are not going to attach much to this the hand guard but for me it’s just a big toy so that is alright with me.
August 12, 2019
4 months ago
Awesome product. You can’t go wrong selecting this.
August 9, 2019
2 months ago
Have not assembled it yet but have ordered a few red parts for it but it looks to be a good product and anxious to get it together and throw flames with it
August 8, 2019
2 months ago
5.56 PDW.
Extremely compact and lightweight. Complete upper, complete lower, and 3 pmags fit nicely in a standard size briefcase. If anyone is looking for compact firepower, this is a must have. Fit and finish is excellent.
Its a tight fit, but it fits.
Just an unassuming old briefcase....
August 8, 2019
2 months ago
Great shortie AR upper!!!
I really like this upper. Honestly, I bought it on a whim when it was on sale not thinking I would shoot it or use it much, but just to have a really short AR pistol to show the opposite extreme from my long heavy barreled target AR. I already had the palmetto 10.5" pistol with the standard birdcage flash hider and was quite familiar with the high pressure muzzle blast and fireball when fired. The first time I fired it was at night so that I could see the fireball and I was quite amazed. The flash can completely reduced the fireball to just some small radial sparks and also reduced the high pressure blast and made it comfortable to shoot like a standard AR. So far, I've only shot it with steel case and some Hornady soft points but it has functioned 100%. Obviously in this configuration it is suitable for optics or red dots only and it's basically a fairly short-range proposition. Muzzle velocities are estimated to be around 2100 feet per second. This has quickly become my new favorite shorty AR!
Thanks Palmetto!
August 7, 2019
2 months ago

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