Lower Parts

The KAC Ambidextrous Magazine Release is easily installed into any standard, mil-spec AR-15 lower receiver. Requires zero modifications to the host firearm. Knights Armament Company, Ambidextrous Magazine Release Kit, Black Easy Installation Fits...

KE Arms, KP-15, Semi-automatic, Complete Lower Receiver, Polymer, Black Color, Molded Fixed Stock, Mil-spec Components

The new MKII version of the GGP-S Series brings a new level of customizability never before seen in our rifle receivers. Not only can you build your own version of the Heavy or Light rifle, but you can use your favorite aftermarket parts to complete the...

Sharp Brothers Gen 2 The Jack AR15 Billet Lower Receiver The Jack - Gen2 is a high-performance, precision-machined AR-15 lower receiver, designed for enhanced durability, reduced weight, and improved styling. Built from 7075-T6 aluminum, this lower...

The Spikes Tactical Forged AR-15 lower receiver is perfect for your next AR-15 build. This particular lower receiver features the Gadsden logo which has not been color filled. The lower is made from 7075 T6 aluminum and is finished with a Type III...

Badger Ordnance Enhanced Bolt Catch The Badger Ordnance Enhanced Bolt Catch is Billet machined from 4140 and hardened to 45-50 Rc. Re-styled to give positive tactile feel for rapid manipulation and angled to make it easier to engage/disengage...

  Knights Armament Company AR-15 Receiver End Plate with Castle Nut and Push Button QD Swivel  

  The ZEV Technologies AR15 Billet Receiver Set was designed to complement the enhanced features of the ZEV rifle product line while retaining compatibility with most mil-spec accessories to give you the most options for completing your build. ...

  PWS Ratchet Lock Castle Nut and Endplate Set The Ratchet Lock Castle Nut End Plate set works with mil-spec OR commercial buffer tubes and eliminates the need for staking. A quick upgrade to any rifle build, the Ratchet Lock Castle Nut End...

Aero M5 Builder Set w/ Atlas R-One 15" M-LOK Handguard This package deal includes the pieces you need to start building your own M5 .308 Rifle, including a M5 .308 Assembled Upper Receiver, M5 ATLAS R-ONE Handguard of choice and a M5 .308 Stripped...

  Knights Armament Company Combat Trigger Guard Assembly The KAC Combat Trigger Guard is enlarged for use with gloves or for shooters with large hands. It is compatible with most mil-spec AR-15 lower receivers, but may require slight fitting in...

  Constructed from 303 Stainless steel Guaranteed against corrosion For AR15 platform Pin set weighs 14 grams Available in raw stainless or Melonite black finish American made with a lifetime warranty