classic rifle kit

More Views

PSA 16" Mid-length 5.56 NATO 1:8 Stainless Steel Freedom Rifle Kit - 508077


Quick Overview

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: 508077
UPC: 508077
MFR#: 508077

16" Barrel Length
5.56 NATO Chamber
1 in 8" twist
416 Stainless Steel Barrel
Mid-length Gas System
PSA Freedom Lower Build Kit
M16 Full Auto Bolt Carrier
C158 HPT/MPI Bolt
Charging Handle

Add To:

Barrel: 416 Stainless steel. Chambered in 5.56 NATO, with a 1/8 twist, M4 barrel extension, and a mid-length gas system. 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. 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, Shot Peened, High pressure tested, Mag particle inspected, 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: Everything you need to turn your stripped lower into a complete lower.


SKU: 508077
SKU 508077
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 508077

Questions and Answers

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 1 question Browse 1 question and 4 answers
is this a pencil barrel or an HBAR?
Lynn S on Dec 27, 2018
BEST ANSWER: This is not a pencil/light weight barrel, it's more a HBAR. I had to go back through my purchase orders to look at this one for your answer. I've ordered so many rifle kits from PSA that it's difficult to keep track of all of them and I haven't been disappointed with any of them.


4.8 / 5.0
69 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
good kit
The weapon parts are all functional.

The only part I don't particularly like is the phosphate coating on the BCG. The phosphate has a lot more friction than a nitride, melonite, or similar BCG. It still works fine though, and excellent for the price.
April 21, 2019
PSA Build
I have built several different kits from PSA,and I have assembled another 7 for friends and family.They all went together nice and tight,and they run like a sewing machine at the range. I see a lot of people complaining about shipping time . I have never had to wait more than a week to get my order,so, that's all I have to say about that . Keep up the good work PSA !
June 18, 2018
Absolutley OUTSTANDING!!
I like most all of the reviewers give an overall 5 STAR Rating for this kit. It was absolutely perfect. Each and every part was first rate. I plopped down my stripped lower and within 45 minutes of assembly and cleaning I was plopping down at the range banging away with the completed rifle. Flawless function and reliability. I purchased this Upper and Kit for a spare AR. Now my other AR is my spare! Thanks Palmetto for the fast shipping too!
July 30, 2017
Very good product at a good price
I actually bought this 6/16. I'm new to PSA and wasn't aware of the reviews. This rifle kit was very nice. Went together with my 80% lower like it was supposed to and shot excellent at test with one caveat. I found the front A2 site to be canted after I couldn't get proper zero. I contacted PSA and they fixed it within a couple of weeks. Good customer service on that. I just purchased another of these with the upgraded MOE lower and M lok front guard. Can't wait to get it. I'm getting upgraded MOE lower and the floating rail for only $20.00 more then I paid for the same basic rifle kit last year!
June 1, 2017
PSA Stainless 16 inch 1-8 twist (Blem)?
First AR 15 build put this upper on an Omni hybrid lower...put 100 plus rounds of 5.56 and 223 thru it w/o an issue. Then changed out the trigger to a Velocity as the lower build trigger was bit gritty and changed all the furniture because that is what everyone does.. Another 250 rounds of mixed rounds of both 223 and 5.56 w/o any issues. I mean no issues it has run everything I put in it without so much as a hiccup...

It was listed as a Blem and I was trying to save a bit of money as it was my first experience with building any gun. I looked everywhere for the reason why it was listed as a blem and have no idea what it may have been. I have been able to put 5.56 in groups about the size of my hand at 100 yards and 223 groups are tighter and low and right of that with a twenty five year old scope and bad eyes.. This guy was blast to build and I'm a happy guy and will be trying out a 300 blackout from Palmetto...
May 22, 2017
Great kits and quick shipping
I'm new to the ar platform but not guns. Assembled 2 kits on 80% lowers that i completed. They went together well (one little problem but nothing major). The anodize on the lowers matched the kits almost perfectly. The upper assembly in each kit is nicely done (as far as i can tell). The stainless barrel in contrast to all the black looks really cool! Went out and shot 3 mags in each gun with 3 different kinds of ammo and 2 different kinds of magazines. Every combo i tried worked well in both guns and bolts stayed open after last shot each time. So far very pleased. Good quality great price punctual shipping(4 days). Thanks Palmetto state!
March 28, 2017
Good Deal!
im new to ar's but not guns and i am a machinist of 30 yrs. The kit was finished nicely delivery took 4 days and all parts were included in the 2 kits(there was 1 xtra spring). i used 80% lowers that i did. It went together easily even though one mag release looked to not be 90 degrees(that one actually functions better). Took them both and shot 5 rounds each with 2 different mags(10 rounds each). Both cycled properly and held the bolt open after the last round. Thanks PSA! Good product GREAT price. Keep up with quality control and you'll be around a long time. Can i open a store in the Richmond Va. area?
March 19, 2017
Great build
Bought this kit to finish my Aero Precision lower. Really like the quality of the product. The rifle is a tack driver. The price it sells for is a steal.
March 16, 2017
Great budget build
I've been looking to build a stainless barrel rifle and this one turned out to be great. I put it together with a SMI lower and went together nice and tight. Looking forward to go out to the range(waiting on the weekend). I'm confident it will perform as it should.
February 28, 2017
Wow it was so easy to build even my 14 year old son got into the mix we are waiting for my second kit to arrive
Ordered the kit brought a lower receiver 80% went to a friends house drilled the receiver out and wala it is better than my SW MP Sport I brought at the gun show and alot cheaper. I was so impressed I am making a total of four kits one for each member of my family even my friends got into the mix as well. I put the store brought AR and put it next to the PSA kit and I asked the which one was store brought and which one did I put together and they all claimed the store brought was the KIT FROM PSA So impressed I will be coming back for another and my next kit is all ready on its way I should receive by Friday 2/10/2017 THANKS PSA for a very value kits and your prices can not be beat I have shopped around and you beat them all. I come her first for all my parts
February 7, 2017

Customers Who Viewed This Item Also Viewed