ADCOR is now offering a 13" extended rail upgrade kit for their rifles. I have purchased one but due to being deployed will not be able to comment on it until I get back.

The rail changes to the keymod system which in my book is a good thing as I hated how aggressive the standard rails are on ones hand when not gloved. You also get a lot more rail space now to mount keymod based accessories.

They are making a limited pre-order run that sells for $245 and free shipping.

I know a few people had complaints on not having a rifle length system and complained about the rails. The sketches are still indicative though that use of the forward charging handle will not allow the mounting of accessories on the side it is located. Still it's nice to see something new that solves in my book one of the issues I had with the system.

good catch, will check their website