Product Features & Specifications

CMMG 38CA61A AR MK3 Lower Parts Gun Builder kit 308 Lower Black

Lower Parts Kit, Mk3, Gunbuilder's Kit

The CMMG® Mk3 Gun builders kit includes most of the necessary parts to build up your lower group except the commonly upgraded parts. Does not include Fire Control Group or Pistol Grip. Compatible with CMMG Mk3 Lowers and most LR308 type lowers. Check out our LPK Install resource article for an interactive assembly guide and in-depth breakdown. All CMMG products come with our Lifetime Quality Guarantee.

Kit Includes:

• Bolt catch & screw-in pin
• Bolt catch plunger & spring
• Trigger/hammer retaining pins
• Safety, detent, & spring
• Magazine catch, spring, & release button
• Pivot/takedown pins, detents, & springs
• Buffer retainer/spring

**Not all 308 lowers are the same. Our kit is designed to work with our lowers and are “Mil-Spec”. We would recommend checking with the manufacturer of your lower for compatibility of parts if you are not using our receiver**

Brand	CMMG
Series	Lower Parts Kit
Model	Gun Builders
Caliber	308 Win
Firearm Fit	MK3
Color	Black
Firearm Type	AR Platform
SKU	96789
MPN	38CA61A
UPC	815835015415