PSA 16" Carbine-Length M4 5.56 NATO 1/7 Nitride MOE EPT Rifle Kit & Rear MBUS - 516447449

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PSA 16" Carbine-Length M4 5.56 NATO 1/7 Nitride MOE EPT Rifle Kit & Rear MBUS - 516447449

In stock

Regular Price: $ 579.99

Special Price $ 379.99

Quick Overview

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

SKU: 516447449
UPC: 516447449
MFR#: 516447449
  • Barrel Length: 16"
  • Gas System: Carbine-Length
  • Barrel Profile: M4
  • Barrel Steel: 4150V Chrome Moly
  • 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 Front Sight Base
  • Muzzle Device: A2 Flash Hider
  • Receiver Material: Forged 7075 T6
  • Receiver Type: M4
  • Hand guard Type: Magpul MOE Black Handgaurds
  • Bolt Carrier Group Included: Yes
  • Bolt Steel: Carpenter 158
  • Bolt Carrier Profile: Full Auto
  • Charging Handle included: Yes
  • Rear Sight: Magpul MBUS Rear Flip-Up Sight
  • Overall Length: 24.5"

Add To:

Barrel: Nitride finished 4150V chrome moly vanadium 16" barrel. Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a carbine-length gas system. this M4 barrel is is finished off with Magpul MOE carbine-length handguards, F-Marked gas sight base, and A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized for durability. 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.

Build Kit: PSA EPT MOE Lower Build Kit

Includes Magpul MOE Stock,  Pistol grip, and trigger guard, Palmetto State Armory EPT  Lower Parts Kit and Mil-Spec diameter 6-position buffer tube assembly.

EPT Lower parts kit upgrades the standard combat-style fire control group with a single-stage, target-style,  fire control group with polished contact surfaces and a electroless nickel coating.

Everything you need to finish your stripped lower!

Includes: Magpul® MBUS Rear Sight, Black

SKU: 516447449
SKU 516447449
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
SKU: 516447449

Questions and Answers

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Browse 1 question Browse 1 question
Can I get the hand guard , stock , and pistol grip OD Green?
Caliguy408 on Jul 12, 2018


4.3 / 5.0
15 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Excellent build quality
Very easy build for my stripped lower. Accurare and holding up well

I have put about 2000 rounds through the build and no issues. Get them while you can
August 9, 2018
2 months ago
Great rifle getting all the parts was a problem
I ordered the upper and lower build kit. Received the package. Opened the box and only the upper and a MBUS sight was there, no lower. Called PSA on Monday and they said they would ship the lower. I asked that it be expedited since I was eager to get started. They said they could not expedite but had to send it regular means. Once I started the build I opened the MBUS sight package and found that it was a front sight and not the rear sight as ordered. Frustrated again, I call to complain. Their answer, we will send the proper sight by regular means. Needless to say, it took me weeks to get all the parts.
August 3, 2018
2 months ago
Great build for a low price.
I absolutely love this gun. This upper is paired with a Aero lower. Shoots great, and didn't kill the budget. Out of all my Ar's, this one is one of my favorites.
User submitted image
User submitted image
August 1, 2018
2 months ago
Good value upper
Good upper for the average shooter. Have built 4 rifles using these uppers with no issues.
July 15, 2018
2 months ago
Good looking gun
Went together well and looks awesome. Still waiting to shoot it, but the action clean and trigger pull crisp.
July 12, 2018
1 month ago
Just what you would expect for a startup AR project without the enormous markup prices.
July 8, 2018
2 months ago
Customer service comes thru.
I’ve ordered a few PSA parts and kits in the past. This time kit arrived without the lpk. Contacted customer service and they got the missing parts to me within the week. Alls good!!
July 2, 2018
2 months ago
Front Sights/ barrels canted to the left of center line .
I bought two rifle kits I matched them with Anderson lowers. Both rifle will cycle any ammo put through them however one of them had right move rear sights to the left halfway through the adjustment to sight in at fifty yards the other rifle rear sight is all the way to left to hit targets at fifty yards! Inspection of both weapons shows the barrel is turned slightly to the left causing the sight problems one is worse than the other ! Probly gonna try to send the worst one back for replacement
May 5, 2018
4 months ago
Response from Palmetto State Armory
We do apologize for that. Since all of our parts and firearms are covered by our Unlimited Lifetime Warranty, if you have any issues arise from the craftsmanship of the product, we can either have select parts sent to you for you to replace, or we can have the item brought in, at no cost to you, so we can repair or replace the defective product. Please contact Customer Service so we may resolve this issue.
May 7, 2018
Casey S
Awesome quality and price!
May 2, 2018
4 months ago
Can't beat it for the money
The enhanced trigger was a pleasant surprise, overall, what more could you ask for in a kit?
May 1, 2018
4 months ago

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