PSA 16" M4 Carbine Length 5.56 NATO 1:7 Nitride Freedom Rifle Kit - 507617

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PSA 16" M4 Carbine Length 5.56 NATO 1:7 Nitride Freedom Rifle Kit - 507617

In stock

Regular Price: $ 499.99

Special Price $ 299.99

Quick Overview

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

SKU: 507617
UPC: 507617
MFR#: 507617

Barrel Length: 16"
Gas System: Carbine Length
Barrel Profile: M4
Barrel Steel: 4150 Chrome-Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: None
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: F Marked Front Sight Base
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA Classic Carbine Handguards, Black
Stock Type: PSA Classic M4 Adjustable Stock, Black
Grip Type: PSA Classic A2 Grip, Black
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Fire Control Group: PSA Mil-Spec Fire Control Group
Overall Length: 24.5"

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Barrel: Chrome Moly steel barrel chambered in 5.56 NATO with a 1:7 twist rate, M4 barrel extension, and a carbine-length gas system. The barrel is finished off with a standard handguard, F-Marked gas sight base, and A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized, features a forged upper receiver. These uppers are made for us right here in the USA by a mil-spec manufacturer.

Bolt: Full-auto profile bolt carrier group. Milspec Carpenter No. 158® steel bolt. Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec. 8620 steel M-16 profile carrier is chrome lined and phosphate coated.

Lower Build Kit: Includes Classic M4-Style Stock, A2 Pistol grip, Classic Lower Parts Kit and Mil-Spec diameter 6-position buffer tube assembly. Everything you need to finish your stripped lower.



SKU: 507617
SKU 507617
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
SKU: 507617

Questions and Answers

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Browse 5 questions Browse 5 questions and 21 answers
I'm seeing different barrels for these kits. Do the nitride kits come with nitride barrels or no?
Ian H on Apr 15, 2018
BEST ANSWER: If it's listed as Nitride in the description, then you will be getting a Nitrided barrel.
Looking for a barreled AR upper with carrying handle, duplicate to the original M16’s. Do y’all carry this item?
Chief on Jun 22, 2018
can I use 223 ammo?
threeper on Apr 12, 2018
BEST ANSWER: Yes, rifles chambered in 5.56 Nato can shoot .223
What Parts are Nitride treated / coated ?
Kazan M on Jun 25, 2018
BEST ANSWER: Just the barrel and barrel extension.
What parts are missing to complete gun?
Randy J on Jun 22, 2018
BEST ANSWER: The lower. It’s what houses the trigger assembly and safety also what the back stick screws into. You can buy one finished with a serial number or buy a 80% that you will have to finish to 100%.


4.9 / 5.0
75 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yet Another Quality PSA Kit !
I have completed yet another rifle using PSA's kits. Each one goes together with zero issues, each perform perfectly. I paired with a PSA lower, fit was as expected. Don't know why many are choosing Anderson lowers, I've used both and prefer PSA's, an all around better (and less expensive) lower. Plus, I prefer an "All PSA" rifle, not pieced together.

The only thing I changed was the handguards. I prefer the skinny's over the fatty's, just my preference. Nothing wrong with the handguards that came with the kit.
User submitted image
Added Jul 7, 2018
July 7, 2018
3 months ago
Can not beat the deal
I’ve done a few builds and I always get my parts here at PSA. You can’t beat this or any other deal here. Thanks again!
July 6, 2018
5 months ago
Does the whole upper come completely together
June 26, 2018
My first AR
This was my first AR kit. Only took about an hour to assemble all components in Anderson stripped lower which I purchased locally. Everything fit together just as it should. Upper and lower fit nice and snug with no gap. Ran 60 rounds through it without any issues, Using iron sights, about 2" group at 100 yards. I think the rifle can shoot better than me!
June 24, 2018
4 months ago
Awesome product
I have purchased this kit and paired it with a Anderson lower performs very well together. I have yet to have any malfunctions I am very satisfied with the quality and performance. I will definitely be making another purchase in the near future.
June 19, 2018
Can’t beat this price for a first time builder.
Very pleased with this kit. Great packaging and parts came oiled or greased perfectly.
Incredible price for this kit.
Incredible price for this kit.
June 5, 2018
2 months ago
Awesome buy!! Great product.
June 2, 2018
3 months ago
Arrived quick and they ship to P.O. box it’s being engraved and the I will assemble it all parts fit perfectly great people to do business with.
May 31, 2018
2 months ago
For what I paid, it's a great rifle.
Couldn't have asked for more. The nitride barrel was done very well, and the kit, once completed with an Anderson lower, turned out to be a well-functioning and good-shooting rifle. Purchased about seven weeks ago and already have close to 1,000 rounds through it. I highly recommend to anyone looking for their first AR.
May 22, 2018
2 months ago
Great kit at a great price!
For the money these kits are hard to beat. You get quality parts at a great price. I definitely recommend these kits. They even send a extra detent and spring in case you lose one while assembling it. Needless to say those come in handy sometimes. Lol
May 21, 2018
3 months ago

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