Iron-Pig Armament


MSRP: $1,399.00
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144.00 Ounces

Start with the STANDARD PREDATOR AR15/M4 CARBINE as your baseline, which comes with these standard options: Iron Pig Armament Billet Lower, Billet Gen II Upper, Billet M-lok handrail with an 16 inch, 1:8 twist barrel, Mil-Spec A2 Flash Hider, Mil-Spec fire control group, M16 BCG, Mil-Spec A2 Grip & Magpul MOE stock (black).

Then select the Barrel, Collapsable Stock, Trigger Control Group, Grip, Muzzle Device and Finish/Color you want to make this carbine yours.





These barrels are properly air-gauge tested and individually checked for headspace. 0ur quality control system ensures they are dimensionally correct and bores fall well within their individual tolerance ensuring superior accuracy.

  • Length: 16″
  • Weight: 29.0 ounces
  • Caliber: 5.56 NATO
  • Gas System: Carbine Length
  • Twist Rate: 1:8 RH
  • Gas Block Journal: .750″
  • Gas Port Size: .063″
  • Muzzle Thread: 1/2-28
  • Material: 4140 CMV
  • Finish: Blacknitride+™ by H&M
  • Barrel Extension: M4
  • 11° Target Crown


The upper receivers are precision machined from high quality aluminum billets and fit all standard Mil-Spec style AR15 lower receivers.

  • 7075-T6 Aluminum Billet
  • Hard Coat Anodized
  • No T-Marks
  • 100% American Made

IPA AR-15 Lightweight M-LOK Handguard w/ Full Rail

  • Finish: Hard Anodized
  • Material: 6061-T6 Aircraft Grade Aluminum
  • Gun Rail: M-LOK
  • Steel Barrel Nut and Mounting Screws

M16 BCG which is trusted by seasoned shooters and depended on by experienced builders. Our goal is to go above and beyond Mil-Spec expectations! Iron Pig Armament’s BCGs are made to perform for tens of thousands of rounds. This is to ensure long-term reliability and the utmost durability and improved lubricity for our BEST-IN-CLASS BCG that is 100% American Made!

Bolt (May or may not show HPT MPI SP on bolt)

  • Machined from Carpenter Technology No. 158 alloy.
  • Heat treated
  • Shot peened per ASTM B851/SAE AMS2430S
  • Individually High Pressure Tested (test fired)
  • HP proof testing, 100% using a high pressure M197 or SAAMI commercial equivalent, without evidence of failure
  • Individually Magnetic Particle Inspected after Initial Test Fire
  • Manganese Phosphate finish


  • 4140 Steel per ASTM A108, cold drawn and stress relieved BHN 187-22
  • Phosphate Finish
  • Extractor Spring
  • Black Extractor Insert
  • Viton O-Ring


  • Machined from AISI 8620 aircraft quality alloy per ASTM A108/A322-13
  • Full Mass M16 Profile
  • Stress Relieved
  • Hard Chrome Bore

Gas Key

  • Machined from 4130 chromoly steel alloy per ASTM A108/A322-13
  • Grade 8 Hardware
  • Properly Staked
  • Hard Chrome Internal
  • Permatex sealed


Billet Lower Receivers:

  • 7075-T6 Aluminum
  • Type III Class 2 Hard Coat Black Anodized (standard)
  • Precision Broached Magazine Well
  • Threaded Bolt Catch Pin Included
  • Rear Takedown Detent Spring Retained with Set Screw Included
  • Upper Receiver Tension Screw Included
  • 100% American Made

Please note, this is a restricted item and the lower receiver must ship to a Federally licensed gun dealer.

The rifle will ship with a copy of our FFL for your dealer records.

You can upload a copy of your dealer’s FFL via our CONTACT FORM.

If you do not have a copy, simply have your dealer email a copy of their FFL to  

Please include your order number on the contact form.

Your order will not ship until we have a copy of the receiving dealer’s FFL on file.