Lower Parts

Maritime Bolt Catch

The Geissele Maritime Bolt Catch is designed with the warfighter in mind and will work with any lower receiver designed to accept a mil-spec M16/M4 Carbine bolt catch. The increased surface area promotes ease of function when locking back the bolt or...

MCX Stock Adapter

MCX Stock Adapter Kit gives you the ability to upgrade your AR15 style rifle and install MCX folding stock assemblies (Note: This will not work with Collapsible stocks / braces). CAUTION: Many States and localities regulate the use and/or possession of...

Contractor Series - Billet Magazine Catch & Release Button

Description: The Fortis Billet Mag Catch & Button is a superior alternative to the ones found in a mil-spec lower parts kit. Easily installs in seconds and instantly upgrades your rifle. This upgrade is CNC machined from a solid piece of 6061-T6...

SLS FIFTY Safety Selector (50 & 90 Degree)

Comes standard with 50°/90° combo core (recommended). Description: When designing our new Fortis Super Lean Sport (SLS) FIFTY™, we made sure our brand's innovation, intent and quality were evident in every aspect of the design. While most...

Talon 45/90 Ambidextrous Safety Selector - 2 Lever Kit

The Talon™ 45/90 ambidextrous safety selector is a modular design that can be installed as a standard 90° or as a 45° short throw by simply rotating the shaft 180° inside the lower receiver. Selector levers install using a precision...

ESK Selector – AR

The Magpul ESK (Enhanced Selector Kit) – AR is a modular, ambidextrous selector kit designed for AR pattern firearms that provides user-configurable selectors with modern ergonomics at an accessible price. The selector axle is reversible for 60 or...

Strike AR Picatinny Stock Adapter

The Strike AR Picatinny Stock Adapter gives the user the ability to mount a 1913 Picatinny interface stock/stabilizer assembly where normally the receiver extension is attached. For ARs that do not need an in-line buffer and buffer spring to function,...

AR15 Buffer Tube

UTG PRO® AR15 6-position Receiver Extension Tube, Mil-spec, Matte Black 6-position Mil-spec Diameter Receiver Extension Tube for AR15 Rifles Extension Tube CNC Machined from 6061-T6 Aircraft Grade Aluminum with Precisely Rolled Threads for Durable...

AR15/10 Anti-Walk Pin Set (small pin)

CMC’s innovative, self-contained and easy-to-install AR-15 trigger groups, have been completely re-tooled to maximize production capacities, incorporate new design enhancements and reduce cost. CMC’s AR-15 trigger groups have always yielded...

AR Safety (black)

DESCRIPTION Designed to maximize performance with TriggerTech AR triggers our patented AR Safety features 45° and 90° interchangeable throws, our own proprietary ball tip detent pin and the grip does not have to be removed to install / remove the...

Troy Ambidextrous Mag Release

The Ambidextrous Magazine Release replicates the feel and length of a standard magazine release, but also accommodates left-handed shooters and one-handed magazine changes. This magazine release is constructed of rugged machined billet tool steel. Only...

ZEROED Ambi Mag Catch and Button Kit

Magazine catches don’t have to be an inconvenience for left-handed shooters. The CMMG® ZEROED™ ambi extended mag catch brings the ambidextrous operation of our original ambi mag catches along with an extended-release bar that gives...

Lower Parts Kit, AR-15, Ambi Selector

All the parts you need to get started on you next AR15 build. Combine this kit with a buttstock kit to complete your lower group. Includes a CMMG Ambi Selector. All parts meet or excede mil-spec.

5.56 Gun Builder Lower Parts Kit

Includes: Rear takedown pin, Spring & Detent Front takedown pin, spring & Detent Mag Catch, release & spring Selector, selector spring & detent Buffer retainer & spring Bolt catch, plunger, pin & Spring Hammer pin & trigger...