I just installed my titanium tube on my M4. I wanted to post a note here to as a testimonial to the quality of product offered by Carriercomp.
I have ordered several aftermarket parts for various weapons. This product is of the highest quality I have ever seen. The enclosed directions were clear and easy to follow.
After removing my factory tube, I compared it to the titanium tube. The new part was considerably higher quality than the original.
I ordered the OEM Parkerized finish. The Cerakote was flawless and matched the barrel perfectly.