GRG Flip Up Front and Rear Backup Iron Sight - Tactical Rifle Scope Accessory for AR-15, Hunting & Shooting Range Use

well made, well sized, and tightly sprung for quick aquisitioning them into action as well as replacing them back into their stealthy waiting to be used stance laying flat and out of harms way as well as out of my way but up or down these sights are the best fit for my AR/15 set-up with a see through riser placing my scope just above these sights so I can leave them up all the time but prefer to have them in the down position unless SHTF and they need to be in the ready! If you need a good set of back ups or just want a good decent priced well made sights then these are just the sights you want. I went through many sights all of which turned out to NOT be what I wanted and then I came across these sights by FIELD SPORT INC with their lock and spring action and was sold when I saw them but still being pessimistic waited until I recieved them and WOW was I right in buying this set of front/rear flip up spring assisted sights!! They have proved themselves on the range hold their zero and do not flip up when firing as I read in another review. If you over tighten them they will be slow to pop up and not lock back down into place accurately so only tighten until snug using lock-tite and they will be perfect!! I cant stress how well these sights are so all I can say is I buy a lot of stuff on Amazon and say its great when its great, goog when its good and crap is its crap and these are great!! Just remember to not over tighten the sights but snugly tighten using lock-tite to keep them set and you too will be amazed at how great a full set (front AND rear) of well made sights can be bought and sold so inexpensivley.I use the word inexpensive because these are not cheap they are inexpensive. Cheap means crappy get what you pay for kind of stuff but inexpensive means well made great product sold at an unbelievable price. I wish I knew how to upload pics of the sights on my AR/15 to this review so you can see what Im raving about and why you too should not wait to buy these but pull that trigger and get a set or two or three for your selves now!!!