THE DEFINITIVE GUIDE TO KNIGHTS ARMAMENT SR-15 16 UPPER

This strengthened layout really helps to raise the life of the bolt and make certain a correct seating each time the weapon cycles.The 1st stage is actually a ‘no-poundage’ stage in which rarely any resistance is felt through the rear-ward squeeze. There is a Middle issue at which point resistance is felt and the 2nd stage in the induce commenc