The STANDARD Gladiator 556M carbine comes with the Iron Pig Armament Forged Lower, Forged Gen II Upper, Billet M-lok handrail with an 16 inch, 1:7 twist barrel, Mil-Spec fire control group, M16 BCG, Mil-Spec A2 Flash Hider, Mil-Spec A2 Grip & Magpul MOE stock (black).

If you would like to customize your Gladiator 556M in any way, please see our CUSTOM GLADIATOR 556M

BARREL

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: 1:7 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

FORGED UPPER RECEIVER

Receivers are precision machined from high quality forgings and fit all standard Mil-Spec style AR15 lower receivers. They do not have dry film lube applied.

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

BILLET HANDGUARD

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

BOLT CARRIER GROUP

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

Extractor

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

Carrier

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

FORGED LOWER RECEIVER

It all starts with a solid Forged billet of 7075-T6 aluminum and then precisely machine all of the critical features and dimensions of the AR15 lower to ensure that every receiver is perfectly in spec. We then broach the magazine well for a perfect magazine fit, hand deburr, tumble and hard coat anodize. The result of our time and attention to detail is an AR15 lower receiver that will last you a lifetime and guarantee you a worry-free and quality build. These receivers accept all Mil-Spec components and look great with both a IPA billet or forged upper receiver.