12 inch heavy duty M-LOK PYTHON style free floating AR15 handguard

This handguard is very easy to installation , do not need any washer , very easy to install , shorten the installation time , it only cost 20% time of other handguard . first , fasten  the barrel nut on the AR15 upper receiver , and put the handguard on the barrel nut , and then lock the two screw in the bottom of the handguard , then finish , we tested before , all work can be done in 30 seconds , half minute only , this is really incredible miracle , very easy ,  but other handgaurd need few washer to make the alignment , and adjust the angle repeatedly , so much boring work and waste too much time , it is hard to finish the installation in 5 minute

the anti rotation pin in the end of the handguard will fit the upper receiver , and will stop the handguard from rotation , the knurling on the barrel nut surface will stop the handguard from rotation or slide, it is so convenient and reliable