Spike's Tactical Calico Jack Rifle Lower Build Kit, Enhanced Stock

Spike's Tactical Calico Jack Rifle Lower Build Kit, Enhanced Stock with Polymer Cheek Riser and Rubberized Buttpad

This is a Spike's Tactical Calico Jack AR-15 rifle lower build kit built around a Spike's Tactical Calico Jack forged 7075-T6 aluminum lower receiver with a MIL-A-8625F Type III Class 2 hard coat anodized black finish, a Mil-Spec pattern, multi-caliber markings, and Parley, Argg, and Plunder selector markings engraved on both sides of the receiver. The complete Mil-Spec AR-15 lower parts kit covers the full internal lower component group. A Mil-Spec A2 style pistol grip in black covers the grip interface. The buffer system consists of a Mil-Spec heavy-duty AR-15 6-position carbine buffer tube in aluminum, a standard AR-15 carbine recoil buffer at 3 oz., and a standard AR-15 carbine recoil spring made in the USA. A US Tactical AR-15 and M16 Mil-Spec receiver end plate and an AR-15 carbine castle nut complete the rear hardware. A Mil-Spec enhanced stock in black polymer with an adjustable length of pull, a polymer cheek riser, and a rubberized buttpad closes out the rear end.

Key Features

• Spike's Tactical Calico Jack forged 7075-T6 aluminum lower receiver, MIL-A-8625F Type III Class 2 hard coat anodized black
• Mil-Spec pattern, multi-caliber markings
• Parley, Argg, and Plunder selector markings engraved on both sides
• Complete Mil-Spec AR-15 lower parts kit with Mil-Spec A2 style pistol grip, black
• Mil-Spec heavy-duty AR-15 6-position carbine buffer tube, aluminum
• Standard AR-15 carbine recoil buffer, 3 oz.
• Standard AR-15 carbine recoil spring, made in the USA
• US Tactical AR-15 and M16 Mil-Spec receiver end plate
• AR-15 carbine castle nut
• Mil-Spec enhanced stock, black, polymer, adjustable, polymer cheek riser, rubberized buttpad, Mil-Spec carbine buffer tube compatible

Perfect For

• AR-15 rifle builders sourcing a complete lower build kit on the Spike's Tactical Calico Jack receiver with a Mil-Spec enhanced stock with cheek riser and rubberized buttpad included
• Shooters pairing this kit with an existing upper assembly who want a Calico Jack lower and an enhanced stock with adjustable cheek height and a rubberized buttpad covered in one package
• Builders who want a distinctively marked Spike's Tactical lower receiver with a complete Mil-Spec buffer system and a Mil-Spec enhanced stock in one lower kit

Lower Receiver

The Spike's Tactical Calico Jack lower receiver is a forged 7075-T6 aluminum receiver finished to MIL-A-8625F Type III Class 2 hard coat anodize standards in black. The Mil-Spec pattern receiver carries multi-caliber markings and the Calico Jack-specific selector markings of Parley, Argg, and Plunder engraved on both sides of the receiver body. The receiver accepts standard Mil-Spec AR-15 components throughout the lower.

Lower Parts Kit and Buffer System

The complete Mil-Spec AR-15 lower parts kit covers the full internal lower component group, including the fire control group, magazine catch, bolt catch, and all associated pins and springs. A Mil-Spec A2 style pistol grip in black covers the grip interface. The Mil-Spec heavy-duty AR-15 6-position carbine buffer tube in aluminum, standard AR-15 carbine recoil buffer at 3 oz., and standard AR-15 carbine recoil spring made in the USA form the complete buffer system at the rear of the lower. The US Tactical AR-15 and M16 Mil-Spec receiver end plate and AR-15 carbine castle nut lock the buffer tube down cleanly at the rear of the receiver. The Mil-Spec enhanced stock in black polymer fits directly onto the Mil-Spec carbine buffer tube and closes out the rear end with an adjustable length of pull, a polymer cheek riser that allows the shooter to set cheek weld height, and a rubberized buttpad for consistent and comfortable shoulder contact. The all-black finish across both the lower receiver and the enhanced stock gives this lower kit a clean and consistent exterior from receiver to stock.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.