These are Noveske VLTOR MUR upper receivers that are marked with the CHAINSAW logo, under the forward assist. CHAINSAW marked products are fully functional...they just have minor cosmetic blemishes.
The Noveske CHAINSAW MUR upper receivers may not be compatible with some handguards that have anti-rotation tabs (i.e. - Troy Alpha)
NOVESKE CHAINSAW grade rifles and components are perfect for the guy (or bad ass chick) who plans on using their rifle as a tool. We strive for quality in every way, including setting the industry standard for cosmetic perfection. Inevitably, there are parts that do not make it past our incredibly stringent quality control process, for minor cosmetic blemishes. Rather than stare at boxes of parts perfectly capable of pumping more lead into Mother Earth, we’ve marked them with a little chainsaw and are offering them at a discounted rate. These culled parts will still deliver the same quality performance you can expect from a NOVESKE product. Leave your microscope at school and your camera on landscape setting; CHAINSAW’S are NOT for stamp collectors.
As always, NOVESKE RIFLEWORKS, LLC will be more than happy to inspect, repair, or replace any NOVESKE CHAINSAW marked part suspected of having a functional defect, however they cannot be returned for cosmetic blemishes. If you suspect a functional defect, please contact Noveske directly at www.NOVESKE.com.