PSA 20'' CHF Rifle Length 5.56 NATO 1:7 A2 Upper With BCG & Charging Handle - 516446156

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PSA 20'' CHF Rifle Length 5.56 NATO 1:7 A2 Upper With BCG & Charging Handle - 516446156


Quick Overview

SKU: 516446156
UPC: 516446156
MFR#: 516446156

Barrel Length: 20"
Gas System: Rifle Length 
Barrel Profile: A2 
Barrel Steel: "Machine Gun Steel" barrel
Barrel Finish: Phosphate
Chrome Lining: Extra - thick chrome lined including chamber
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 Front Sight Base
Muzzle Device: A2 Style
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA Classic Handguards
Bolt Carrier Group Included: Yes
Bolt Steel: 158 Carpenter
Bolt Carrier Profile: Full Auto
Charging Handle Included: Yes
Overall Length: 28"
Weight as Configured: 3.6 lbs

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 rate, M4 barrel extension, and a rifle length gas system.   The A2 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.

BCG: Bolt is made of Mil-s\Spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is parkerized outside, and chrome lined inside.

SKU: 516446156
SKU 516446156
Brand Palmetto State Armory
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SKU: 516446156

Questions and Answers

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When will this become available?
Tim123 on May 13, 2018


4.7 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Waiting on availability...
I have the 16" version set up with a holographic EOtech for short/midrange, but really hoping this 20" one becomes available soon so I can put a scope and tripod on her and build a more precision rifle. Would be great to have the pair.. FN barrels rock!
May 13, 2018
i have 1 small issue,my top rail that is used to install a scope is to small and no mount i have tried will tighten down all the way ?
April 28, 2018
6 months ago
Almost perfect
This assembled upper is a great value for those looking for a 20" barreled AR-15 and don't want the hassle of putting one together yourself or paying nearly twice the $$$ to another manufacturer. Here is the breakdown:

* This is a true FNH marked barrel and is exactly what is on the M16A2/A4 rifles.
* Gas block & gas tube are straight.
* Finish on the upper receiver matches up perfectly with all of my various lowers from other manufacturers (Colt RRA etc).
* Accurate enough for a CL barrel. I was shooting about 1.5 MOA at 100m with M193 and M855.
* Price keeps coming down! I bought this upper on 5/30/2017 for $479 w/ free shipping; As of 6/29/2017 it is now going for $399 w/ free shipping.

* The handguards are NOT milspec A2 handguards. True A2 handguards are round in shape; the ones on this upper are oval. It wasn't THAT big of a deal to me as they will be coming off and swapped out with the Knight's Armament RAS M5 (I'm building a A4 clone) but I was a bit disappointed about this. It isn't clearly spelled out in the product description that these are NOT milspec handguards.
* The upper has the PSA laser etched logo up near the handguard delta ring. Its sort of annoying (to me) but in no way affects the fit or function of the upper.

Overall this is a great upper receiver and you shouldn't hesitate to pick one up of you are in need of a quality 20" barrel.
June 29, 2017

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