classic rifle kit

More Views

PSA 16" Carbine Length CHF M4 5.56 1:7 Rifle Kit - 505097

In stock

Regular Price: $ 699.99

Special Price $ 399.99

Quick Overview

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

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: 505097
UPC: 505097
MFR#: 505097

Barrel length 16"
Cold Hammer Forged Barrel
Machine Gun Steel
5.56 Nato Chamber
1 in 7" twist
Carbine Length
High pressure tested
Magnetic particle inspected
M4 feedramps
Forged, flat top upper

PSA Classic Lower Build Kit

Add To:


Barrel: A proprietary blend of Hammer forged chrome molly vanadium made by FN that is referred to as "Machine Gun Steel" by virtue of its required use in FN's M249 and M240 weapons. The hammer forging process work hardens the steel, making it more durable. In addition, the chrome process for the bore allows for a lining almost twice as thick as a standard M16 for enhanced durability. Chambered in 5.56 NATO, with a 1/7 twist, M4 barrel extension, and a carbine-length gas system. The M4 profile barrel is Mil-spec phosphate coated, High Pressure tested and Magnetic Particle inspected. Barrel is finished off with an F-marked front sight post with sling swivel, standard handguards and an A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. Featuring T-marks, these upper upper receivers are made for us right here in the USA.

Lower Build Kit: Includes our M4-style stock, A2 Pistol grip, Palmetto State Armory Classic Lower Parts Kit with single-stage combat trigger, Mil-Spec size buffer tube, castle nut, end plate, carbine spring, and PSA Standard buffer.

Each upper is assembled to order with US-made parts, and test fired to check gas function.


SKU: 505097
SKU 505097
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: 505097

Questions and Answers

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 21 questions Browse 21 questions and 37 answers
Which bcg is included in the kit?
Charles W on May 26, 2018
BEST ANSWER: My kit came with the premium full auto bolt carrier group.

The bolt is marked MPI HP.

It has the PSA Cannon and Ball logo laser etched onto the side of the carrier.

Taking the bolt apart revealed black spring insert and black donut.

Gas key was properly staked.

I have heard others say they received a lower grade bcg than I have described. And Ive heard others say they got the premium full auto bcg like I did. I think it depends on what PSA has available. I think I got lucky.

My buffer also is black and has the PSA ligo on the flat head part if the buffer
is this the bestest gun I get?
nite f on Jan 4, 2019
BEST ANSWER: Prolly not best, but mine is pretty dang good
Whats missing the lower reciver?
Dennis S on May 17, 2018
Is the barrel marked FN?
Gene C on Jul 8, 2018
BEST ANSWER: Yes it has the FN stylized in an oval, MP,5.56 NATO, 1/7. It’s PSA’s premium barrel.
556 ammo only?
Jerome W on May 27, 2018
BEST ANSWER: 5.56 and .223 ammo will work in this gun
Is this like a Colt (the quality of)?
Mendel M on Dec 11, 2018
BEST ANSWER: I own both a Colt LEO6920 and a AR built with the 505097 PSA kit and an Anderson Lower. The fit and finish of the PSA is every bit as good as the Colt. The Hammer Forged FN barrel is very accurate. I have had 4 friends build the same rifle after me and they all are as happy as I am with the PSA. Save your money, buy the PSA.
What are the specs of the BCG that comes with the 16" catbine length CHF rifle kits?
Marco on Aug 22, 2018
BEST ANSWER: Not the premium, at least the one that came in my kit. C158/MPI bolt, but not HPT.
Is this barrel chrome line?
Mendel M on May 22, 2019
BEST ANSWER: Yes this kit features a FN produced chrome lined Cold Hammer Forged barrel.
Is this a SOCOM (thick) profile barrel ?
Tommy on Aug 26, 2018
BEST ANSWER: no, standard M4 profile as described above.
FN logo out by front sight.
What size hand gaurd can I fit?
Donald S on Feb 13, 2019
BEST ANSWER: Carbine length but if you remove the front sight assembly and replace it with a low profile gas block and free float you can put any length you want.
Is bcg and bolt chrome plated also?
Frank on May 3, 2019
BEST ANSWER: No. It is a normal bolt carrier with a phosphated exterior. The inside of the carrier where the bolt and gas rings ride and rotate is chrome plated.
What BCG comes with this kit? is it the premium BCG? And how is the fitment on a PSA lower?
Zachary C on Jan 12, 2019
BEST ANSWER: It’s the premium carrier. It fits most lowers very well. I built it on an Anderson lower though
Does it come with BCG?
Bruce C on May 22, 2019
Does this upper come with bolt and carrier and charging handle? Pic shows it but description doesnt talk about it.
Bruce C on May 22, 2019
BEST ANSWER: Of course. It's a build kit. It comes with everything but a stripped receiver and a rear sight.
Is BCG phosphate or nitride?
Brian D on Mar 9, 2019
BEST ANSWER: Phosphate, it’s not the premium but is MP.
It says it comes with combat trigger is it the polished trigger like the EPT?
Brian D on Mar 1, 2019
BEST ANSWER: Standard mil spec trigger. Not EPT.
I have this kit but want to change to a front rail system. What forward rails would fit this kit? Thanks
Matt M on Sep 9, 2018
BEST ANSWER: I replaced mine with a Troy Industries AR-15 MRF-D BattleRail Drop In Quad Rail 7". Any 2 piece carbine length rail should work. Hope that helps.
Is it illegal in New York?
Brian T on May 19, 2019
I want this kit but in a midlength 14.7", pinned and welded?
Short Round on Mar 22, 2019
So Aero makes the receivers for you and then you do the final machining and anodizing?
Grumpy on Mar 21, 2019
Is the barrel chrome lined ?
richard l on Dec 12, 2018
BEST ANSWER: yes, it is.


4.4 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Are these blemish mis-stamped or what?
Not sure if this kit is actually chrome lined or high pressure tested since it is not stamped on the barrel. Just HF and MP. Going to be hard to convince a buyer it is if I wanted to sell.
February 22, 2019
5 months ago
great barrel but rest disappoints
Cheap looking bolt, budget carrier. Freedom grip is a throw away because it's so narrow and so short only 3 fingers fit. Overall I felt this kit was like getting a race engine in a subcompact econo-car. Next time I will buy barrel/upper receiver only, and use the savings for a matching quality bcg and decent furniture. Still waiting for them to ship my stripped lower, so ordered one elsewhere that was shipped the next day.

BTW, the bolt was real dirty and shows quite a bit of wear right out of the they run 100 - 200 rounds thru them when they test them?
January 10, 2019
4 months ago
Get one!
It's awesome. Only that would make it better is if it were a midlength. No regerts.
December 5, 2018
1 year ago
The BCG that came with this looks the same as the one I got with the,
Right down to the MP marking on the bolts.
September 17, 2018
10 months ago
Fassst Shipping
Ordered on 9/13/2018 and was delivered today. Haven’t looked at it yet but I’m sure all is good with the kit.
I’ve purchased a lot of Premium equipment over the years from PSA and none of it has ever let me down and this kit will be no different.
September 17, 2018
8 months ago
I recommend this kit seems to be great fun for the price only about 200 rounds through it so far so time will tell but very accurate with green tip ammo only thing I have shot through it so far.
June 16, 2018
1 year ago
This is the second premium kit that I have purchased from PSA, great FN quality
June 16, 2018
1 year ago
New Guy talks AR's
So just a few months ago I decided that I was going to finish my AR15 80% lower. My mindset was that this needed to be done in time just before the election cycle this year got serious. So I finished the lower that I got at tactical machining with their jig (no i'm not affiliated nor a shill) and all came out well.

I figured well now i just need everything else. So I asked a friend and he recommended that I give this place a look after he himself bought a PTAC rifle kit. After doing some research of my own I decided that I didn't want the PTAC and figured that a Cold Hammer Forged Barrel would be my best bet for a good home defense/fighting rifle/range rifle. $600 is a lot to me but if you want something that works every time and you want good quality and long barrel life you can't afford to skimp out.

Upon receiving the kit (only took a week to get to my place in California) I put it together and for a first timer it wasn't too difficult. Only issues I had we're with the roll pins. If you don't have a starter for those you're going to have a difficult time. The finish on the kit is very nice much nicer than the gray ashy looking finish of the PTAC. Very smooth matte black describes it best. Some upgrades that I recommend for any first time user is to swap out the atrocious A2 style pistol grip. That grip just plain sucks. You can't go wrong with a magpul moe grip. I also swapped out the furniture for some MOE SL furniture.

After all that jazz and a few range trips i'm very happy with the accuracy of this rifle. She hits wherever I aim and its practically a laser. Very excited with the new optic I got on her. Lets hope Aimpoint red dots live up to their (expensive) reputation.
June 26, 2016
Awesome kit awesome price awesome value!
I have owned AR'S since 1978 first was a Colt SP1 next a Colt LEO6920 just thought it would be fun to build a shooter so my kids will have matching guns built two of these kits with Anderson Lowers and my only regret is that I did not go with the PSA lower. The Anderson is nice and functions perfectly and the finish matches the PSA almost perfectly but the finish inside the Anderson is not as good as the PSA. Bought the polished trigger kit and believe it provides an excellent trigger feel for less than 100 rnds of ammo. I think my Colts will be getting some well deserved rest for a while.
August 26, 2015
I am a Retired U.S. Marine and am currently a police officer. I know guns. I am completely satisfied with my purchase from PSA. This is my 5th AR build and my first using PSA. (Others were Rock River Spike's Tactical DPMS and Bushmaster.) Ordered this kit to assemble onto an Anderson lower. Rifle kit arrived in less than 2 weeks (maybe 10 days). All parts were present. Was expecting the CHF barrel but was surprised to find it was chrome lined too. This one is higher quality than my Spike's and significantly less expensive. I have (3) more Bushmaster lowers to build for my kids. I will ABSOLUTELY use PSA for future builds. Super-pleased in every way. Best M-4 kit in quality and value.
July 20, 2015

Customers Who Viewed This Item Also Viewed