Product Overview

The Noveske x Irregular Defense 11.5" delivers elite short-barrel performance with a serialized 416R stainless match barrel; mid-length gas system; and hand-polished Noveske Match Chamber for exceptional accuracy and smooth reliability in a compact package. Built on matching Irregular Defense–marked Noveske Chainsaw forged receivers; the rifle features a full FDE Type III anodize + Cerakote finish; a 10.75" NSR M-LOK handguard perfectly spaced for suppressed use; and a CGS SCI-SIX flash hider/suppressor mount for immediate compatibility.

A full-auto rated BCG; Carpenter 158 MPI bolt; ambidextrous Noveske Love Handle charging handle; and pinned low-profile .750 gas block ensure durability under hard-use conditions. Premium ergonomics come from the full Irregular Defense furniture suite—including FEER riser; Special K grip; MHS hand stop; MRC panels; and MBS V1 Barricade Stop—paired with a B5 Systems Bravo stock and a Geissele SSA-E two-stage trigger for unmatched control and speed.

Lightweight at 6.25 lbs; suppressor-ready; and mission-configured in black or FDE; the Noveske x Irregular Defense 11.5" is the ultimate fusion of craftsmanship; combat-proven components; and modern performance—purpose-built for shooters who demand the best in a compact 5.56 platform.

Available in black or FDE; in either pistol or SBR configuration.

Technical Specifications

Barrel:

11.5” 5.56mm 416R Stainless with 1:7 twist
Individual serialized barrel for QC purposes
Hand-polished Noveske Match Chamber
Mid length gas tube system
Straight fluted between chamber and gas block
Noveske-marked gas block: Low profile; .750” journal; pinned to barrel
M4 barrel extension w/extended hand polished feed ramps
CGS SCI-SIX flash hider / suppressor mount

Upper Receiver:

IRGLR DFNSE marked Noveske Chainsaw forged upper receiver from 7075-T6 aluminum w/extended feed ramps
Hardcoat type III anodizing (and Cerakote on the FDE SBR)
Black nitride Noveske marked forward assist
Noveske Love Handle charging handle
Featuring anti-rotation interface with handguard
Phosphate coated bolt carrier; full auto compatible; chrome lined carrier bore and key
Properly staked grade 8 American made gas key bolts
Phosphate bolt made from Carpenter 158 heat treated steel MPI tested (magnetic particle inspected)

Handguard:

4^th Generation NSR-10.75” (M-LOK) Free Floating Handguard
Featuring M-LOK mounting positions every 45 degrees with picatinny 1913 top rail
Lightweight American-made steel barrel nut
The 10.75” handguard with a 11.5” barrel will return a .080” clearance from end of handguard to barrel thread shoulder. Perfect spacing when you add your favorite suppressor

Lower Receiver:

Irregular Defense marked Noveske Chainsaw forged lower receiver from 7075-T6 aluminum
B5 Systems Bravo polymer trigger guard
Government issue 90-degree safety selector
Hardcoat type III anodizing (and Cerakote on the FDE SBR)
Properly staked Noveske QD sling mount endplate
Noveske marked takedown and pivot pin
Adjustable tension screw for perfect fit between upper and lower
Geissele SSA-E Super Semi-Automatic Enhanced combat proven two-stage trigger
Noveske marked 6 Position mil spec impact extruded carbine extension
H2 buffer with carbine action spring

Furniture & Accessories: