NO-LOGO AR-15 Rifle Lower Build Kit, Rare Breed FRT-15L3, Mil-Spec Heavy-Duty Carbine 6-Position Buffer Tube

NO-LOGO AR-15 Rifle Lower Build Kit, Rare Breed FRT-15L3, Mil-Spec Heavy-Duty Carbine 6-Position Buffer Tube

This is a Delta-M4 No Logo AR-15 rifle lower build kit built around a forged 7075-T6 aluminum lower receiver with a Type III hardcoat anodized black finish, a Mil-Spec AR-15 pattern, a low shelf trigger pocket with M16 cut, a smooth no-logo magazine well face, and Safe, Semi, and Full Auto selector markings. The receiver is made in the USA and carries minimal exterior markings with no logo present beneath the trigger pocket or on the magazine well face. Manufacturer, origin, and serial number markings are located on the side of the receiver. The Rare Breed FRT-15L3 forced reset trigger in 7075 anodized aluminum and heat-treated 4140 steel with a 3-position selector covering Safe, Semi, and Forced Reset, and an ambidextrous safety selector replaces the standard Mil-Spec fire control group. The remaining lower parts kit covers the complete Mil-Spec AR-15 internal lower component group outside the trigger. A Mil-Spec A2 grip in black covers the grip interface. The buffer system uses an Armaspec Sound Mitigation Buffer H3 Gen3 single-stage drop-in replacement at H3 weight, 5.6 oz., with an adjustable spring weight, a polymer base guide rod, and integrated buffer and recoil spring components. A Mil-Spec heavy-duty AR-15 carbine 6-position buffer tube, a US Tactical AR-15 and M16 Mil-Spec receiver end plate, and a Mil-Spec AR-15 carbine castle nut complete the rear hardware.

Key Features

• Delta-M4 No Logo forged 7075-T6 aluminum lower receiver, Type III hardcoat anodized black, Mil-Spec AR-15 pattern, USA made
• Low shelf trigger pocket with M16 cut
• Smooth no-logo magazine well face
• Minimal exterior markings, no logo beneath trigger pocket or on magazine well face
• Manufacturer, origin, and serial number markings on side of receiver
• Safe, Semi, and Full Auto selector markings
• Standard AR-15 and STANAG magazine compatible
• Rare Breed FRT-15L3 forced reset trigger, 7075 anodized aluminum and heat-treated 4140 steel, 3-position selector, ambidextrous safety selector
• Complete Mil-Spec AR-15 lower parts kit with Mil-Spec A2 grip, black
• Armaspec Sound Mitigation Buffer H3 Gen3, H3 weight 5.6 oz., adjustable spring weight, polymer base guide rod, integrated buffer and recoil spring
• Mil-Spec heavy-duty AR-15 carbine 6-position buffer tube
• US Tactical AR-15 and M16 Mil-Spec receiver end plate
• Mil-Spec AR-15 carbine castle nut

Perfect For

• AR-15 rifle builders sourcing a complete no logo lower build kit centered on the Rare Breed FRT-15L3 forced reset trigger with an Armaspec H3 Gen3 buffer system included
• Shooters pairing this kit with an existing upper assembly who want a clean no logo lower receiver, the FRT-15L3 trigger, and a sound mitigation buffer system covered in one package
• Builders who want a forged USA-made no logo lower receiver with the Rare Breed FRT-15L3 and Armaspec H3 Gen3 buffer in one complete lower kit

Lower Receiver and Trigger

The Delta-M4 No Logo forged 7075-T6 aluminum lower receiver carries a Type III hardcoat anodized black finish with a Mil-Spec AR-15 pattern, a low shelf trigger pocket with M16 cut, a smooth no-logo magazine well face, and Safe, Semi, and Full Auto selector markings. The receiver is made in the USA with minimal exterior markings and no logo beneath the trigger pocket or on the magazine well face. Manufacturer, origin, and serial number markings are present on the side of the receiver as required. The Rare Breed FRT-15L3 forced reset trigger is built from 7075 anodized aluminum and heat-treated 4140 steel and operates on a 3-position selector covering Safe, Semi, and Forced Reset modes, with an ambidextrous safety selector included. The remaining Mil-Spec AR-15 lower parts kit covers the complete internal lower component group outside the trigger, and a Mil-Spec A2 grip in black covers the grip interface.

Buffer System

The Armaspec Sound Mitigation Buffer H3 Gen3 is a single-stage drop-in replacement buffer system that integrates the buffer and recoil spring into one unit at H3 weight, 5.6 oz., with an adjustable spring weight and a polymer base guide rod. The Mil-Spec heavy-duty AR-15 carbine 6-position buffer tube houses the Armaspec H3 Gen3 system at the rear of the lower. The US Tactical AR-15 and M16 Mil-Spec receiver end plate and Mil-Spec AR-15 carbine castle nut lock the buffer tube down cleanly at the rear of the lower receiver.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. A full-auto compatible bolt carrier group is required for FRT-15L3 function and is not included.