Davidson Defense Tiger Shark SBR Ready 5-inch 1:16 45ACP Freefloat M-Lok Handguard Pistol Full Build Kit

Tiger Shark 5-inch 1:16 .45 ACP Freefloat M-LOK Pistol Full Build Kit, SBR Ready

The Tiger Shark is a .45 ACP Full Build Kit configured for the SBR Ready designation, built around a compact 5-inch direct blowback platform. The kit centers on a 5-inch slim profile 4150 CrMoV steel barrel with a parkerized finish, 1:16 twist rate, and .578x28 thread pitch, paired with a KAK Micro Flash Can and a black 5/8-inch crush washer. The Vertex Enhanced billet AR-15 pistol caliber upper receiver in black is paired with a 4-inch slim-line freefloat M-LOK handguard in black with a full-length top Picatinny rail. A complete PCC AR bolt assembly for .45 ACP and a Mil-Spec AR-15 M4 charging handle complete the upper side. The lower hardware includes a complete Mil-Spec AR-15 lower parts kit, a Mil-Spec heavy-duty 6-position aluminum carbine buffer tube, an 8 oz PCC buffer in black, a standard AR-15 carbine recoil spring, a Mil-Spec AR-15 M16 receiver end plate, and an AR-15 carbine castle nut. This kit ships without a brace and is intended for customers selecting their own final setup. Lower receiver not included.

Key Features

• 5-inch slim profile 4150 CrMoV steel barrel, parkerized finish, 1:16 twist, .578x28 thread pitch, .45 ACP
• Direct blowback platform
• KAK Micro Flash Can, .578x28, .45 ACP compatible, black 5/8-inch crush washer included
• Vertex Enhanced billet AR-15 pistol caliber upper receiver, black
• 4-inch slim-line freefloat M-LOK handguard, black, full-length top Picatinny rail
• PCC AR bolt assembly, .45 ACP
• Mil-Spec AR-15 M4 charging handle
• Complete Mil-Spec AR-15 lower parts kit
• Mil-Spec heavy-duty 6-position aluminum carbine buffer tube
• 8 oz PCC buffer, black
• Standard AR-15 carbine recoil spring
• Mil-Spec AR-15 M16 receiver end plate
• AR-15 carbine castle nut
• SBR Ready configuration

Perfect For

• AR-45 pistol builders sourcing a complete .45 ACP blowback full build kit with a Vertex Enhanced billet pistol caliber upper receiver, 5-inch parkerized slim profile 4150 CrMoV barrel, 4-inch slim-line freefloat M-LOK handguard with full-length top Picatinny rail, platform-specific bolt assembly, and complete buffer system already included, pairing it with their own lower receiver and selecting their own rear brace or stock
• Shooters building a compact 5-inch .45 ACP direct blowback pistol platform who want the platform-specific bolt assembly, charging handle, and complete buffer system with an 8 oz PCC buffer covered without a rear interface commitment and a Vertex Enhanced billet pistol caliber upper receiver
• AR-45 PCC pistol builders who want a complete .45 ACP blowback full build kit with a Vertex Enhanced billet pistol caliber upper receiver and a 4-inch slim-line freefloat M-LOK handguard in an SBR Ready configuration without sourcing components separately

Barrel and Muzzle Device

The 5-inch slim profile barrel is chambered in .45 ACP and constructed from 4150 CrMoV steel with a parkerized finish. The twist rate is 1:16 and the thread pitch is .578x28, which matches the included KAK Micro Flash Can. A black 5/8-inch crush washer is included. The direct blowback platform design addresses the .45 ACP cartridge in a pistol caliber build without a gas system.

Upper Receiver and Handguard

The Vertex Enhanced billet AR-15 pistol caliber upper receiver carries a black finish and is designed around the pistol caliber platform. The 4-inch slim-line freefloat M-LOK handguard is black with a full-length top Picatinny rail and M-LOK attachment points along the body for accessory mounting. These two components define the exterior structure of the upper assembly on this .45 ACP pistol platform.

Bolt Assembly and Charging Handle

The PCC AR bolt assembly is chambered for .45 ACP and covers the bolt carrier group position for this pistol caliber platform. A Mil-Spec AR-15 M4 charging handle is included to complete the upper component set.

SBR Ready Configuration

The complete Mil-Spec AR-15 lower parts kit covers the internal lower receiver components. The buffer system includes a Mil-Spec heavy-duty 6-position aluminum carbine buffer tube, an 8 oz PCC buffer in black, a standard AR-15 carbine recoil spring, a Mil-Spec AR-15 M16 receiver end plate, and an AR-15 carbine castle nut. This kit ships without a brace, with the brace or stock selection remaining with the buyer.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Ships without a brace. Do not attach a stock unless compliant with applicable laws. Lower receiver not included. Verify compatibility with your specific .45 ACP AR-45 lower receiver and magazine pattern before use.