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Questions Regarding Sights (128 FAQs)

Top 10 FAQs For This Topic

	While zeroing in my new Bushmaster 20" XM15 E2S, I noticed a difference between what the Technical Manual said and what was happening with my rear sight. According to the manual, the sight should go down three clicks beyond the 300 meter setting and bottom out. Mine bottomed out at the 300 meter setting. Which is correct, the Manual or the factory setting of the rear sight? 2nd Q. My Operator's Manual that came with my rifle says that to zero my rifle at 25 meters (page 53), my range scale should bottom out at three clicks past the 8/3 mark, while my Technical Manual (page 3-57) says the scale should bottom at 8/3. What's up with that?
	i have a bushmaster xm15 e2s with a carry handle. i want to mount a scope/sight. will the A.R.M.S #2 Scope Mount work with my rifle? what about the aluminum scope mount? What are the pros and cons of each? Do I have any other choices? Thanks,
	How do I remove the front sight to install an picatinny gas block. Will it void my warranty?
	How to I zero an A2 sight?
	What are the differences between an A2 and A3 sights?
	I have sighted my gun in for 25 meters. What should I do now to sight it in at 100 meters?
	Is there a flip front sight I can install in place of the Front sight tower on the Patrolman's carbine? If there is, how can I remove the old Front sight? Is there something I can cover the pin slots with ?
	Is the model YHM-9360K the correct front sight to use with the model Arms #40 rear sight for the ORC? Will these iron sights co-witness with most holo sights or is the co-witness feature limited to a few holo sights?
	What are the basic differences between the A2 and A3 Upper Receiver Assembly's?
	My A2 and A3 Sight Base cocked to the left.

Recently Added FAQs To This Topic

	how do tell the diffrence between a1 and a2 front sight
	I have a brand new Bushmaster M4 "Patrolman's" Carbine which has yet to be fired. I did try and bore sight it with a laser bore sighter and it appears the laser is pointing way low and no matter what I do I can’t line up the detachable handle sights, the red dot rail mount or the magpul rail mount back up sights. Looks like everything would need to be raised from the rear but there is simply not enough adjustment on anything to accomplish this. All the sites are consistent with each other just Not with the laser bore site. Rotating bore sight in chamber yielded no difference and the chamber and barrel are spotless. Appears that the difference is approx 5 inches low on laser. I did remove bolt from upper and lined up the barrel the old fashioned way by eyeball and lined up target....sites still way high and not enough adjustment to compensate.
	I have an ORC. What would you recommend for a folding front sight. I am looking for something I can install without taking it to a gunsmith.
	jsut bought the rifle xm-e2s with the a2 upper...in order to mount a scope i would need to change out the upper to an a3...correct ? if so what does an upper a3 cost ?...223/556 thanks dan
	MY AR IS OBVIOUSLY POST BAN I NEEDED TO MILL THE PINS OUT TO REMOVE MY FLASH HIDER. MY QUESTION IS ON MY FRONT SIGHT BAR THE PINS APPEAR TO BE FLARED ON BOTH SIDES AND DONT MOVE WHEN ATTEMPTING TO REMOVE, DOES ONE SIDE NEED TO BE GROUND FLUSH FOR THEM TO COME OUT, I HOPE TO ALSO UPGRADE MY GAS BLOCK POSSABLY WITH A FLIP UP SIGHT,IS THIS AN OPTION. THE REASON IM GOING THRU THIS IS TO CHANGE MY HANDGAURD TO ADD LIGHT AND LASER.THANKS DENNIS
	Please forgive my ignorance but i've had my Bushmaster Carbon 15 Model 4 for a couple weeks and i cannot find the elevation dial. I can only locate the windage knob (the vertical knob i assume?) , and my manual only gives me information on the A2 and A3 series rifles sighting procedures. Any assistance you could offer would be greatly appreciated.
	what is the corona marking on left side of front sight stands for?it is near the pin of the gas tube.is this marking only found in bushmaster?thanks
	WHAT IS THE CORRECT WAY TO LINE FRONT SIGHT IN REAR SIGHT? I HAVE THE A1 REAR SIGHT THE ADJUSTMENT IS NOT EXPLANED IN MANUAL,COULD YOU HELP? THANKS GLENN
	Is the front sight removable on a 16 inch A2 type ? It shows an exploded view in the manual but it pyshically looks like it is part of the barrel. My reason is I bought a scope and I think the front sight will be in my view. Please HELP
	I have a Bushmaster Patrolman carbine that requires 16 clicks left of center windage to bring the point of impact to the point of aim. This puts the site so close to the side of the carry handle that it is very distracting and must be fixed. Your FAQ says to replace the barrel index pin, but I can't find this item in your online store. Your FAQ also states that ten rounds are fired thru every gun you sell; how is it that a problem like this is not noticed at this time? I chose Bushmaster in an attempt to avoid these kind of problems.