CT4-2A Other Firearm

Advanced, ATF-approved design offering unmatched versatility and compliance, meticulously crafted by Delta Level Defense.

Multi-Caliber Options

The CT4-2A Other Firearm is available in multiple chamberings to meet different operational needs:

CT4-2A 5.56 NATO
CT4-2A .300 BLK
CT4-2A 9mm
CT4-2A 5.56

CT4-2A 5.56 NATO

CT4-2A .300 BLK

CT4-2A .300 BLK

CT4-2A 9mm

CT4-2A 9mm

Precision Engineering – Specs & Parts List

Each CT4-2A is hand-built in the USA with expert craftsmanship and inspected by multiple gunsmiths for safety and performance.

Lower Receiver

Billet 7075-T6 Aerospace-Grade Aluminum

Upper Receiver

Billet 7075-T6 Aerospace-Grade Aluminum

Anodizing

Type III MIL-SPEC Hard Coat

Cerakote

95% of colors in stock; Multicam, Distressed, Battleworn, and Custom Patterns available as upgrades

Barrel

4150 CMV SBN Match Grade with M4 Feed Ramp (DLD Krieger Barrel Upgrade available)

Gas System

Low-Profile Fixed SBN Treated 4140 Steel (Adjustable Gas System upgrade available)

Muzzle Device

DLD SBN Flash Hider (Optional AAC, Gemtech, Dead Air, Surefire, or ThunderBeast Silencer QD Brake)

Bolt Carrier Group

National Match Grade; Black Nitride & Heat-Treated Steel Carrier, 9310 Steel Bolt, 17-4 Stainless Firing Pin, Proprietary Tool Steel Cam Pin

Charging Handle

MILSPEC or Tactical Upgrades Available (Raptor, Raptor-SD)

Buffer

Standard Carbine 3oz (Optional Tungsten H2 or H3 Upgrades)

Sights

Iron Flip-Up Set (Optional Magpul PRO Adjustable BUIS)

Hand Guard

Billet M-LOK Free Float (10”, 13”, 15”, 18” options)

Receiver Extension

Spineless Pistol Tube or MIL-SPEC Adjustable Tubes

Brace

Standard SBM4 (Optional SBA3, SBA4, SBPDW, or Gear Head Braces)

Pistol Grip

Hogue OEM (Optional Magpul MIAD, Ergo Deluxe, BCM Grip)

Vertical Grip

Mission First Tactical SVG (Optional Arisaka or Fortis Billet Aluminum M-LOK)

Trigger

Schmid Enhanced MIL-SPEC High Polish (Optional Geissele or DLD Proprietary Adjustable/Non-Adjustable)

Included Accessories

Nylon Rifle Case, 10-Round Magazine, Picatinny Rail Section

Manufacturing SKU#: DLD-CT4-2A
Shipping: Anywhere except California and Massachusetts

Additional Specifications

Calibers: .223/5.56, .300 BLK, 9mm, 7.62x39mm, 7.62 NATO, 6.5 Creedmoor, .260 Remington, .224 Valkyrie, .458 SOCOM, 6mm ARC, .338 Federal

Muzzle Threads: 1/2×28, 5/8×24, 3/4×24, 1/2×36

Gas Systems: Pistol (.300 BLK), Carbine (5.56), Mid-Length & Rifle Length options

Barrel Profiles: Proprietary, GOV’T, or SOCOM

Weight: 4.5 – 6.5 lbs

Overall Length: Minimum 31”

Magazine Compatibility: Lancer, Magpul, Glock, ETS, MFT, ASC, DuraMag

Legal Classification – “Other Firearm”

The CT4-2A is not legally classified as a rifle, pistol, or “Any Other Weapon (AOW)” under state or federal law.

Key defining characteristics:

No buttstock; spineless cylindrical tube prevents rifle stock attachment

Equipped with forward vertical grip

Barrel length 12.5” or longer, not classified as a pistol under CT/NY law

Overall length exceeds 26”, not considered AOW under ATF regulations

CT4-2A 5.56
CT4-2A .300 BLK
Learn more or request a custom CT4-2A build today.
Contact Us About CT4-2A Options