Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Adams Arms P1 Upper 5.56 - 16in Mid Gas Length, 556 Barrel
Currently Unavailable View Product
Compare (0)
Most Helpful Positive Review I SALUTE YOU ADAMS ARMS
I did a lot of research before purchasing my first piston driven gun because my life depends on it. Was still skeptical until I put my first 500 rounds through it. The p1 upper worked flawlessly with no malfunctions. I shot 55 grains to 68 grains. I shot cheap rounds and expensive rounds. No issues. The firing pin left a deep impression on the primers unlike my old but reliable bushmaster. Although the Adams is heavier , I prefer the weight as it is a much more stable platform. I've always preferred a smaller foregrip and was also skeptical of the larger foregrip on the Adams but it's very co...
Read More...
Show
Sort by
Filter by

high quality at low price.

by Vic Doe, Verified Owner from CT, United States Written on April 23, 2021
This thing is full auto rated for anyone running a binary trigger. Government barrel full auto rated bolt carrier and gas adjustments settings that makes this a very versatile full complete upper.

My first test was using the CMMG 22LR conversion kit. then put in the supplied bolt carrier back in and started shooting 5.56 again. both 22LR and 5.56 I shot rapidly to see if I was gonna have any issues, none!

Must buy, must have!
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Quality Piston Upper

by GJ, Verified Owner from ID, United States Written on June 8, 2020
Adams Arms makes some of the most affordable and well built piston system for the AR platform. I have and XLM version of their piston system and this one doesn’t disappoint. Can’t wait to put some range time in! I love anything Adams Arms and you can’t go wrong with them.
Pros:
  • solid
  • Well constructed
Cons:
  • None
Would recommend: Yes
1 of 2 found the following review helpful.
Was it helpful to you? Yes | No
There are no reviews that match your criteria. Would you like to review this product?