I have a new NVEC-16 NSN# 5855-01-468-3689 barrel mount for the ar15. Clamps around barrel and provides a rail for mounting an IR laser device or whatever else you want. Mount is new in the package with instructions. I purchased it from a board member a year ago, and have no need for it at this time. I would like $SOLD for the mount plus shipping. I can accept paypal as well as money order. Please email me with any questions.