CMMG's is standard length. I have several and they fit in a number of different upper receivers I have...
BTW: The CMMG Charging Handle works Great.... 2 styles, one for a dedicated upper and one that
will accept a gas tube for a conversion..
When my Green Laser Dot appears on your Forehead.You've already missed what just happened, Forever.. The Green has become Red, it's running down your face and into your eyes and the Green Laser is now shining out the back of your head. Ooooops!!!