PSA 7" 5.56 NATO 1/7 MOE "Marauder" Pistol Upper - NO BCG or CH - 7790284

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PSA 7" 5.56 NATO 1/7 MOE "Marauder" Pistol Upper - NO BCG or CH - 7790284


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.

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
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: 7790284

Questions and Answers

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Browse 41 questions Browse 41 questions and 95 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.
ETA on when this will be back in stock?
Gunnar D on Sep 26, 2018
BEST ANSWER: Right now. I just bought one.
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
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!!
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
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 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 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.
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 size buffer weight are y'all running?
DANIEL H on Jun 7, 2018
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.
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.
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.
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
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!
Is this compatible with the lower of my regular freedom AR from Palmetto?
Merwyn C on Apr 23, 2019
BEST ANSWER: I put it on an Anderson lower. So as long as it’s a standard ar lower it should fit
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.
does this have the normal 1/2 x 28 threads on the muzzle?
Collin F on Dec 3, 2018
BEST ANSWER: Yes, you can swap it out with any other 5.56 muzzle device.
Is the muzzle device pinned?
Dave L on May 16, 2018
BEST ANSWER: NO it's not pinned, it's threaded.
Anyone have a recommendation for a small case to put this pistol in? I've seen some pictures of reviewers disassembling the lower and upper and fitting it into a small case. I'm having trouble finding a good case to fit this pistol build into.
Kaiser on May 5, 2019
BEST ANSWER: Hello, I purchased a law tactical folder for my pistol brace and it fits in a backpack or smaller easily no problems
Looks heavy. Without the sight how light can I make one?
Rick H on Apr 17, 2019
BEST ANSWER: Its light when completed with a shockwave blade. However I have a bushmaster qrc w/ a 16" pencil barrel and it's about the same weight. 5-6lbs.
Do they make the marauder in 9mm?
John on Sep 26, 2018
BEST ANSWER: I don't think so. Go on the PSA site and look under AR 9, you may find an upper like it.
Will this upper fit on my bushmaster carbon 15 lower?
Wildbill on Apr 26, 2019
BEST ANSWER: Yes but to remain legel need an armbrace for pistol
Does this use a standard bolt carrier group and charging handle?
Richard H on Apr 18, 2019
BEST ANSWER: Yes, but it doesn't come with it.
Would an Adarms Arms xlp piston pistol
kit fit under the hand guard ?
Jerry Lee on Nov 30, 2018
BEST ANSWER: If the piston plug is same size as gas trap on pistol upper. The gas piston issue would be the width not length.


4.9 / 5.0
166 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
For the price and quality it can't be beat!
Have built a number of rifles and this upper has been great!
May 25, 2019
2 months ago
It is awesome but l loud
May 24, 2019
2 months ago
A bit heavier than I would have liked, and the muzzle device is a bit longer than I had expected. Otherwise good.
May 23, 2019
1 month ago
Great unit.
Great unit. Tight on platform.
May 22, 2019
1 month ago
Get one now!
Say your prayers kids that PSA knocks up another batch pronto. Subscribe to those in stock alerts as these go quickly. This thing is bonkers loud and barks flames. Tons of fun and gets plenty of attention at the range.
At the range, finally.
a little close up
Barking flames
May 11, 2019
1 month ago
Surprisingly suble and smooth shooting
For being an AR pistol, this one has been leaving no excessive blast as the compensator on this pistol works better, no flash and is quieter than all my other pistols.
May 8, 2019
1 month ago
Fun fun fun, bang bang bang, life is short, go out and make some noise
April 29, 2019
1 month ago
Good stuff !
Nicely made upper. My expectation for this upper was solely that it went boom when I squeezed the trigger. Wanted to build the shortest barrel ar pistol I could get and I found this guy. I’m not a fan of the hand guard so I replaced it. Shot it over the weekend and I couldn’t be happier. It’s loud as heck but I knew that would be the case. The PSA muzzle device does a good job of pushing everything away from you but it’s still loud as heck !
User submitted image
Added Apr 28, 2019
April 28, 2019
1 month ago
Flawless upper
Granted this is my first pistol upper so I cannot compare to other products, but what I can say is that this thing runs beautifully out of the box. Midwest Industries carbine length drop-in handguard fits it perfectly, and the upper mates with my PSA lower without any problems. Palmetto State Armory for life, baby!
PSA Maurader 7.5" upper with Midwest Industries carbine length drop-in handguard
PSA Maurader 7.5" upper with Midwest Industries carbine length drop-in handguard
April 24, 2019
1 month ago
The thing is totally bada** I think everyone should have one....or 2
April 24, 2019
3 months ago

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