Overview of CMMG Mk4LE AR-15 Complete Upper Receiver
CMMG is well known in the industry to produce some of the highest quality AR-15 components at very cost competitive prices. This AR-15 Upper is no different. This CMMG upper is their basic Mk4LE model. This upper is design and a simple, no frills, all business upper receiver. This AR-15 upper receive has a flat top, Picatinny upper, which is ready to accept your optic of choice. Additionally, this upper receiver group has a fixed A2 front sight base. This font sight will work seamlessly with a rear mounted back-up iron sight (BUIS). The plastic handguard makes for a light weight upper receiver that will handle well and not be overly burdensome.