Lower Parts Kits

All the parts you need to get started on your Mk3 build in convenient color-coded packets to simplify assembly. Compatible with CMMG(R) Mk3 and most LR-308 type lowers.Features :Bolt catch, Bolt catch screw-in pin, Bolt catch plunger, Bolt catch...

The Mk3 Gun builders kit includes most of the necessary parts to build your lower group except the commonly upgraded parts. Does not include Fire Control Group, and pistol grip. Compatible with CMMG Mk3 Lowers and most LR308 type lowers.Features :All...

High quality components and precise manufacturing make Armaspec parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on.Features :Precise...

This kit features all of the Seekins Precision manufactured lower receiver parts as well as the pins and springs needed for assembly of your AR15 lower receiver. (Trigger Not Included in Kit.)Features :Lower Parts KitNo Trigger IncludedSeekins Precision...

All the parts you need to get started on your next Mk3 build. Combine this kit with a buttstock kit to complete your lower group. Compatible with CMMG Mk3 Lowers and most LR308 type lowers.Features :All parts meet or exceed mil-specCMMG Mk3 Lowers and...

The parts to complete a custom WC-10 rifle lower receiver and the same parts they use in their shop for their custom WC-10 style rifles. This kit includes a right hand safety selector. As WC-10 style lowers have an integral trigger guard, no trigger...

High quality components and precise manufacturing make Armaspec parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on.Features :Precise...

This Enhanced complete lower parts kit comes with all major parts Nitride Coated. Nitride Coating increases part finish hardness, toughness, and adhesion. Comes with winter trigger guard. Made in the U.S.A!Features :31 piece set to complete a lowerMajor...

Lower Parts Kit made from only the highest quality Mil-Spec or better components. The SOLGW Bolt Catch and Safety Selector are a Mil-Spec AISI8620 investment casting per the USGI TDP. Their Safety and Takedown Pivot Detents are solid hardened Stainless...

Milspec or better lower parts kit, without the fire control group or the grip. Comes with Pivot Pin, Takedown Pin, Takedown Pin Springs (x2)" QPQ Steel Takedown Pin Detents (x3)" Mil-Spec Cast Bolt Catch, Bolt Catch Buffer, Bolt Catch Spring, Mag Catch,...

AR15 Lower Parts Kit-No Pistol Grip or Trigger Guard. Perfect for your next custom build.Features :Lower Parts KitNo Grip or Trigger GuardPins/Screws/Springs/Parts

The Troy Industries Lower Parts Kit includes components needed to assemble a TROY Industries Lower Receiver or similar mil-spec lower receiver. The kit features a Troy Control Grip.Features :GripTriggerHammerTrigger PinBolt Release