Used by Paternia’s premiere PMC, Unity Defense Corporation (UDC), the UCC-300 is a highly-modified, integrally suppressed Paternian M4A1 chambered in .300 Blackout. Often issued to personnel assigned to high-value asset protection, the UCC-300 is unmatched in urban CQB capability.

A fresh take on @Pilotmario’s AR-15 Contractor (https://www.simpleplanes.com/a/3A5rtw/AR-15-Contractor), a design that I first modified over four years ago! This is also the first of (Hopefully) many AR’s that feature simulated BCG blowback, a feature that @AustinGlennManufacturing developed and perfected. Please check out both creators’ profiles! It’s been a pleasure working with both of them.

Receiver: Paternia, Geissele Automatics, Radian Weapons, Magpul

The UCC-300, as well as the UCC-556 (The UCC-300’s unsuppressed rifle counterpart), are built on mil-spec M4A1 select-fire receivers purchased from the Paternian government. The lower receiver features a Magpul pistol grip and a Geissele SD-C Trigger; the charging handle is a Radian Raptor-SD, which is vented for suppressed shooting.

Magazines: Magpul PMAG GEN M3

30-round .300 Blackout PMAG’s are standard issue for the UCC-300.

Stock: UDC Proprietary Design

Manufactured in-house, the UCC-300’s stock was purpose-built to replace the aging CAR-15 stocks of Paternian M4A1’s. This stock is impact-resistant, ergonomic, and sports four QD sling points.

Barrel, Gas System, Suppressor: Noveske, UDC Proprietary Design

The barrel is a chrome-lined, CHF steel barrel custom-made by Noveske. The integrated suppressor, manufactured by UDC, is pinned and welded to the barrel; the resulting configuration is approximately 14” long.

Handguard: UDC Proprietary Design

Unlike UDC’s UCC-556, the UCC-300’s handguard has a proportionally larger diameter to accommodate an integral suppressor. The simple octagonal design features two QD sling points and Picatinny rails at the 3:00, 6:00, 9:00, and 12:00 positions. The handguard bears some similarities to Daniel Defense’s RIS II, mostly due to input from UDC contractors during the design process. Two Magpul Ladder Rail Panels in FDE have been attached to the handguard.

Flashlight, Laser Unit: SureFire, Arisaka, UDC Proprietary Design

Another piece of hardware developed for use on the UCC-300 and UCC-556 is UDC’s IR laser unit, which can be purchased by Mil/LEO customers. Compact and extremely sturdy, the laser unit features an IR laser and IR illuminator in an aluminum housing. Visible illumination is provided by a SureFire M300C mounted on an Arisaka Offset Scout Mount; both accessories are connected to a SureFire SR07-D-IT dual pressure switch.

Scope, Red Dot Sight, Iron Sights: Trijicon, Troy Industries

In a decision inspired by the Trijicon ACOG’s venerable service history with the Paternian military, Trijicon’s ACOG LED was chosen as the primary optic for the UCC-300. This setup also features a top-mounted Trijicon RMR, ensuring a UDC contractor has an effective means of delivering accurate fire no matter the range or ambient lighting conditions. The rear sight is a Troy Industries Folding Battle Sight.

Angled Grip: Magpul AFG-2

Unlike the UCC-556, which is often deployed with a bipod or bipod grip to complement its longer barrel, the UCC-300 is normally outfitted with a Magpul AFG-2 or a smaller hand stop, such as the BCM KAG.