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IA Iron River Armory

Global Ordnance Monolith 5.56 NATO 12.5in KeyMod 30+1

SKUTSW|177461 Conditionnew CategoryAR Pistols
$1129.60
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Specs at a glance

Global Ordnance Monolith 5.… SPECS AT A GLANCE 4.38 lbs WEIGHT 12.50 inches SIZE
Editorial diagram — measurements verified during testing.

About this product

The Global Ordnance Monolith is a compact, bufferless semi-automatic pistol chambered for 5.56 NATO. It is built around a lightweight aluminum receiver with a 12.50-inch barrel and a 1:7 twist rate, and features a KeyMod handguard and Picatinny rail sections. Controls are ambidextrous and the pistol ships with a single high-capacity magazine. The Monolith is suited to short-barrel 5.56 roles including range work, compact configurations, and applications requiring a portable, feature-rich platform.

Key Specifications

  • The chambering is 5.56 NATO (.223 Rem).
  • The barrel measures 12.50 inches with a 1:7 twist.
  • The action is semi-automatic.
  • The capacity is 30 + 1 rounds.
  • The overall length is 20.50 inches.
  • The listed weight is 4.38 lbs.
  • The handguard uses KeyMod attachment points.
  • The receiver material is aluminum.
  • The grip is a B5 P Type 23 style.
  • The safety is ambidextrous.

Designed as a compact, modern AR-style pistol, the Monolith combines a bufferless architecture with a modular KeyMod handguard and practical ergonomics. Its light weight, 30+1 capacity, and ambidextrous controls make it a versatile option for shooters who prioritize compact handling and accessory flexibility. For those seeking a short-barrel 5.56 platform with straightforward controls and proven geometry, the Monolith offers a balanced package ready for range and duty-oriented configurations where permitted.

Sources & methodology. Editorial review and rating by Travis Caldwell based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.
$1129.60