PSA 20" Rifle Length 5.56 NATO 1/7 Nitride A2 Freedom Rifle Kit - 7788893

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PSA 20" Rifle Length 5.56 NATO 1/7 Nitride A2 Freedom Rifle Kit - 7788893

In stock

Regular Price: $ 589.99

Special Price $ 379.99

Quick Overview

free shipping Free Shipping applies to this item only and not the entire order.

SKU: 7788893
UPC: 7788893
MFR#: 7788893

Barrel Length: 20"
Gas System: Rifle-length
Barrel Profile: A2 Style
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: None
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1 in 7"
Barrel Extension: M4
Diameter at Gas Block: .750"
Gas Block Type: F-marked FSB
Muzzle Device: A2 Style
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA Classic Tapered Handguards
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Overall Length: 28"
Weight as configured: 3.5 lbs

Add To:

Barrel: 20" Chrome-moly vanadium steel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a rifle-length gas system. The A2-style profile barrel is nitride finished for accuracy and durability. Barrel is finished off with an .750" diameter F-marked Front Sight Base, PSA Classic Handguards, and an A2 flash hider.

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.

Bolt: Bolt is made of Mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is parkerized outside.

PSA A2 Freedom A2 Rifle Lower Build Kit: Everything you need to turn your stripped lower into an A2 fixed stock lower. Kit includes A2 stock, rifle length buffer tube, buffer and spring, and PSA Freedom Lower parts kit.



SKU: 7788893
SKU 7788893
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
SKU: 7788893

Questions and Answers

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Browse 13 questions Browse 13 questions and 35 answers
How do the barrel quality and accuracy compare to this same setup with the FN CHF Chrome lined barrel? Should I wait for that to come back?
Woody S on Jul 25, 2018
What's the best barbecue recipe for a Memorial Day cookout?
Scott B on May 27, 2018
BEST ANSWER: 1000 rounds of 223 ammo and the psa 20 inch a2 upper
Who is the manufacturer of the A2 fixed stock?
elwood F on May 27, 2018
BEST ANSWER: Good question. Why do you want to know?
Can I change out the handguard to the A1 triangular handguards?
Art E on Apr 23, 2018
BEST ANSWER: Yes you can. Back in the day many moons ago the Army didn’t have enough a2s in inventory so training units were issued m16a1s with a2 furniture installed to get basic trainees use to the feel of the weapon they would eventually be issued. My point is the triangular forearm retaining cap will work with both types.
why does the buffer tube spacer rattle in the buttstock. is this normal?
mike r on Aug 8, 2018
BEST ANSWER: I do not believe that this is normal if the spacer is correctly installed. It does not rattle on my rifle. Everything is nice and tight.
what lower receivers work well on this build does any one has like part number or list of options ?
Adan P on Apr 28, 2018
BEST ANSWER: Any mil spec lower will work well I presonally use aero precision lowers on my builds but psa makes a great lower for not alot of money
If I buy this kit, will the only other things I need be a PSA AR-15 lower and a magazine? And ammo?
Thomas A on May 11, 2018
BEST ANSWER: Any mil-spec stripped lower should work. It does not have a rear iron sight so you'll need one of those or an optic to fire accurately, but functionally you only need this kit and a lower.
Can you install a suppressor on it?
Austin M on Nov 3, 2018
BEST ANSWER: It has a threaded barrel so it shouldn't be a problem, though you may want to add an adjustable gas block
Is this the triangle end cap or round end cap?
Yongkun D on Sep 27, 2018
BEST ANSWER: Mine is a triangle.
What is the difference in this kit and the 7788893B kit?
Salty G on May 29, 2018
BEST ANSWER: Absolutely nothing other than cosmetic imperfections. The "B" stands for "Blemish"
BLEM PSA 20" Rifle Length 5.56 NATO 1/7 Nitride A2 Freedom Rifle Kit
Where can I buy triangular A1 style handguard?
Bill M on Apr 30, 2018
BEST ANSWER: Several places. Try The Google...NOTE: The Q&A here at PSA specifically says, "Do not include HTML, links, references to other stores, pricing or contact info," so... I can't tell you....
What is the total length of the rifle when assembled? I'm buying a bag before buying the kit.
S T on Oct 26, 2018
Is the barrel under the handguards reduced in diameter or the same diameter out to the barrel past the front sight?
Gregory B on Jul 13, 2018
BEST ANSWER: It’s smaller under the hand guards like the original A2 profile. It is not an hbar.


4.7 / 5.0
114 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Awesome budget rifle
Finally affordable home protection, a poor mans dream.
Awesome budget rifle, I love it. THANK YOU PSA!
November 7, 2018
2 months ago
Great for an A4 Build
This kit was a great deal on sale for $360. I built it with an Anderson lower, Knights Armament M5 RAS, milsurp Colt carry handle, and a Franklin Armory BFS for a "burst" position. Great M16A4 lookalike on a budget.

It shot smoothly, reliably and accurately with both the Winchester M193 and Wolf 62gr steel cased ammo I had with me. Very happy with PSA, as usual.
November 5, 2018
1 month ago
Very nice
Beautiful. It worked and went together flawlessly.
November 5, 2018
2 months ago
Good rifle
Very nice rifle for the money. This is the second one I have purchased, both built on Anderson manufacturing lowers with no problems. Was shipped very fast at my door in three days.
November 5, 2018
2 months ago
Absolutely fantastic kit. I do wish it was phosphate finished just to more closely mirror a M16 but that's just aesthetics. My only real gripe is another cosmetic detail. The BCG in this is pretty rough to the touch. This makes cleaning a little more time consuming but has zero effect on the functionality. 5/5 for function, it's shoots great and groups about like you'd expect 3"-3.5"(I'm using irons and 55 grain PMC bronze). With an optic and better ammo I could bring that down.

4/5 on finish due to the above cosmetic comments which are mostly preference. For the money I can't not give it 5 stars. High quality materials, excellent service, and a great company to deal with. I doubt buy another AR from anyone else again.
User submitted image
Added Nov 1, 2018
November 1, 2018
1 month ago
Great for the money
Very nice kit, some of the parts are a little cheap but that’s to be expected. Hard to get a 20 inch rifle for this price otherwise. Thank you palmetto!
October 29, 2018
1 month ago
Fits and works as expected. Perfect for my retro build.
User submitted image
Added Oct 29, 2018
October 29, 2018
2 months ago
A lot of rifle for the money
I put mine together with no problems. I put a carry handle sight on it and took it to the local shooting spot for a function check. It worked fine. The light gray stock was kind of startling. I dribbled a little CLP onto it and rubbed it around and it darkened up nicely. The 20" barrel and solid buttstock make it, compared to a lighter weight carbine-style, a much friendlier rifle to shoot. I like mine a lot, the only change I've made is putting on an MOE grip that stores a little oil bottle.
October 15, 2018
Nice to find a good rifle kit at a decent price without a heavy barrel and excellent customer service at PSA.
October 11, 2018
2 months ago
A lot of quality for the price.
Easy to assemble and shoots well. The stock is a little more gray than real military rifles, but a little CLP made it look right.
October 11, 2018
2 months ago

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