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WELCOME TO THE HOME OF THE
4,000+ fps
1/2 M.O.A. High Performance AR-15's

Dedicated in 1980 to build the finest custom Practical / Tactical AR-15/M-16 upper receivers available. Designed to be naturally shouldered and sighted, rugged, reliable, and extremely accurate.

Over 20 years ago, Insight Shooting Systems started building custom AR-15/M-16 upper receivers with a commitment to design and build a step above in craftsmanship, premium materials, practicality and stand alone value. Today we can proudly say that we have lived up to that commitment.

So if you are looking for a truly High Performance AR-15 upper receiver, you have come to the right place. Our handcrafted high precision upper receivers are the most technically advanced, in both parts and assembly, available anywhere in the world. The Masterpiece and the Masterpiece H.P. series are finely tuned and fitted to be absolutely reliable with consistent 1/2 M.O.A. accuracy. Your satisfaction is guaranteed. Let us build one for you. You'll be glad you did.

I.S.S.I Bolt Carrier and Bolt Assembly availible soon

Please be patient with us, some of this webpage is still under construction.

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