FMK Firearms AR1 Extreme AR-15 Stripped Lower Receiver - .223/5.56 - Black Polymer

$35.09$38.99Save $3.90MSRP $39.99

or 4 interest-free payments of $8.77 with Sezzle

In stock · special order
Allow 3-5 days to ship · ships to your FFL dealer
SKU: FMKGAR1E UPC: 850979004338

This item is regulated, therefore your entire order will be shipped to an FFL dealer of your choosing. After you place your order, we will contact you to finalize these details.

Frequently bought together

From orders that included this item

Product description

Extremely Durable & Lightweight Stripped Lower Receiver Made From Polymer

The FMK Firearms AR1 Extreme AR-15 Stripped Lower Receiver is constructed from a state-of-the-art impact-resistant Polymer that is proven to have superior strength and unmatched durability. This polymer lower receiver is extremely lightweight and is 50% lighter than an aluminum lower, which makes it ideal for lightweight AR-15 builds.

The AR1 Extreme is chambered in 223 Remington and is by far the strongest composite polymer lower on the market today.

Multi-Caliber & Specifically Designed For Firearms

The FMK Firearms AR1 Extreme AR-15 Stripped Lower Receiver uses polymer blended specifically for the construction of firearms.  This lower can be used with any mil-spec upper chambered in everything from .22lr all the way up to the powerful .50 Beowulf.

FMK Firearms doesn’t cut corners and producing a quality product at a price you love.

Features:

  • Superior strength – Built with proprietary composite polymer to withstand extreme conditions.
  • Unmatched durability – When most lowers dent or break, the AR1 Extreme bounces back to shape.
  • Extremely lightweight – 4.3oz • Accepts all standard MIL-SPEC uppers up to .50 Beowulf
  • Compatible with most current AR15 lower parts kits, grips, and stocks.  However, it isn’t designed for 9mm carbine builds.
  • Unconditional lifetime warranty through FMK Firearms.
  • Custom engraving – “The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.”

Specifications:

  • Frame: High Impact Proprietary Composite Polymer
  • Caliber: Multi-Caliber
  • Size: MIL-SPEC
  • Weight: 4.3oz
  • Color: Matte Black
  • 100% USA Made

Customer reviews 6

jimmiefulbright Verified buyer
Wow this thing is light. Only time will tell how durable it is, it doesn't flex and isn't soft. It fits very tight to the Gorilla Machining upper I got with Zero gaps. It's going to make a super light 350 Legend hunting rifle. Plus that price, even if I mess it up I'll just buy another.

AT3 Tactical · Thank you for taking the time to leave a review for our FMK Firearms AR1 Extreme AR-15 Stripped Lower Receiver. We are happy to hear that you are pleased with the product and that it fits perfectly with your Gorilla Machining upper. We strive to provide high-quality products at an affordable price, and we are glad you are satisfied with your purchase. We hope you enjoy your new hunting rifle and please don't hesitate to reach out to us if you need any assistance in the future.

Mitchell Winter Verified buyer
FMK Firearms AR1 Extreme AR-15 Stripped Lower Receiver - .223/5.56 - Black Polymer

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

caleb Verified buyer
I haven't got mines yet just quick question is this made out of plastic, or aluminum?

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Trump2024 Verified buyer
This lower works great. Cheep. With all the rest of the fees we have to pay it evens out on the wallet. No problems whatsoever and it’s all spec.

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Paul Verified buyer
Well made, even color and so light. It's thicker where it needs to be and was easy to build. Trigger pocket was little tight. Anderson trigger won't fit...swapped in PSA trigger and blade fit thru. Very happy.

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Joseph Sanzano Verified buyer
I have to admit I was surprised item was made of polymer. But I have a ar15 that has upper and lower polymer so it's okay. I will mate it with a aluminum upper so I'm sure it will be okay. Milspec is milspec.
Item appears to be plenty strong. I have not built a rifle with it yet but will soon. I'm satisfied.

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Leave your review
Rating

Questions & Answers

No questions yet. Ask about fit, install or compatibility and our team answers within a business day.

Ask a question

Warranty & returns

Backed by the FMK Firearms Warranty!

Customers also viewed

Viewed in the same session as this item.
Sale!
Sale!

Your cart