Month: May 2021

Colt Lower Receivers Will Now Have Lever Stops

Last night on Gun Broker and M4Carbine.net I saw examples of CR6920’s with intact lever stops.

Photo of CR6920 from Gun Broker showing intact lever stops

This is a production change and we will see more lower receivers with lever stops as more production carbines get into circulation.

Now what to do with my CR series carbines that have ground off lever stops? Hmmm.

Current Upper Receiver Markings On 3 New Colt ‘CR” Series Carbines

If you follow me on any of my social media accounts, you may have already seen this information but I wanted to post it here too.

Over on AR15.com, in the ‘Industry/Colt’ section, there is some discussion about the variance in upper receiver markings of current Colt CR series carbines and rifles. I personally have zero issue with the marking variations but I know some people are losing their minds. I understand why the marking variations happen and I’m ok with it because I believe I’m still getting quality parts. Anyway, here is the information that I posted.

Below is a photo showing three of my recent purchases (within the last 60 days) and their upper receiver markings. Nothing consistent between these three carbines in the new CR family.

Back: CR6920-EPR Middle: CR6940 Front: CR6920

Back: CR6920-EPR keyhole forge mark only
No barrel date

Middle: CR6940. stamped ‘C’ and square forge mark. No barrel date

Front: CR6920. CAGE code square forge mark
No barrel date

To demonstrate additional differences, look at the image below that shows the difference between the two upper receiver square forge marks.

Hope you find this informational.

Colt M5 Carbine

The existence of the Colt M5 has been known for some time but there has been very little discussion of the program in public. Information that is available indicates that the M5 has been tested and/or fielded in three calibers and eight different models.

This post is only going to look at the four 5.56mm models. I am going to show you data sheets for three of the four versions and just an image of the fourth variant. The Colt M5 Carbine models are as follows:

Colt CM556-10H-M5A-SCW 10.3″ barrel 5.56 x 45

Yes, you guessed it…this is the newest version of the Colt Sub-Compact Weapon (SCW)

Colt CM556-10H-M5A 10.3″ barrel 5.56 x 45

Colt CM556-10H-M5A Data Sheet Page 1
Colt CM556-10H-M5A Data Sheet Page 2

Colt CM556-11H-M5A 11.5″ barrel 5.56 x 45

Colt CM556-11H-M5A Data Sheet Page 1
Colt CM556-11H-M5A Data Sheet Page 2

Colt CM556-14H-M5A 14.5″ barrel 5.56 x 45

Colt CM556-14H-M5A Data Sheet Page 1
Colt CM556-14H-M5A Data Sheet Page 2

I have not seen any indication to date that the M5 family of firearms are set for release on the civilian market. My fingers are crossed. I hope you have enjoyed this look at these four 5.56 x 45 variants of the M5 Carbine.