I noticed on your Quarter Circle 10 Rail offerings
here or
here you say they are "This handguard is the perfect way to finish any pistol caliber build." which is totally incorrect. you say "
Due to the Handguard fitting over the Upper Receiver this product is not compatible with side-charging upper receivers from American Spirit Arms, Gibbz Arms, Matrix Arms, and others"
You really need to add the QC10 warning from their website
*This product is designed to fit tightly on QC10 and VLTOR upper receivers, and may not fit Mil-Spec AR-15 Uppers, Side charging uppers, or DI gas-operated upper receivers.*
had you had that disclaimer I wouldn't have wasted my money on a rail that wouldn't fit the upper I bought. and tried to install it thus scratching it and not making it returnable.
live and learn I guess. though second time your employees are incorrect about the products you offer.