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Primary Weapons Systems, original founded as AK Concepts, Inc. was forged from a fascination with the engineering, design and mechanics behind the great firearms of our time. Our vision is to refine this classic, yet effective weapon, in order to bring it to the military and public alike. While being designed with today’s soldiers in mind, our products will likewise be of great interest to both sportsmen and collectors. We are constantly working to develop new and exciting products while settling for nothing less than perfection. Together, they create amazing products offering both form and function while maintaining the reputation of AK Concepts. Learn More

In 1989, Arumugam Manthiram and John Goodenough of the University of Texas at Austin showed that cathodes containing polyanions, eg. sulfates, produce higher voltage than oxides due to the inductive effect of the polyanion.[10] Following this, in 1996 Goodenough and co-workers discovered the electrochemical utility of the olivine material lithium iron phosphate, LiFePO4. It is an important and emerging cathode material for lithium-ion batteries due in part to its enhanced safety compared to other lithium-ion chemistries. Cells containing lithium iron phosphate cathodes have been commercialised by multiple companies, including Phostech, Valence Technology, A123Systems, Aleees and Lithium Technology Corp.* [Information from Wikipedia]

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In 1989, Arumugam Manthiram and John Goodenough of the University of Texas at Austin showed that cathodes containing polyanions, eg. sulfates, produce higher voltage than oxides due to the inductive effect of the polyanion.[10] Following this, in 1996 Goodenough and co-workers discovered the electrochemical utility of the olivine material lithium iron phosphate, LiFePO4. It is an important and emerging cathode material for lithium-ion batteries due in part to its enhanced safety compared to other lithium-ion chemistries. Cells containing lithium iron phosphate cathodes have been commercialised by multiple companies, including Phostech, Valence Technology, A123Systems, Aleees and Lithium Technology Corp.* [Information from Wikipedia]

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Special Design for Systema and G&P. 14mm CW Clockwise (+) threads.

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Powder Shot 02 Toy Foam Hand Grenade Gas Edition
Specially design for Paintball / Airsoft use during the game.
It is extremely light (90% made of foam), act like real (sponge, pin, and dummy hammer), and cheap (MSRP less than $40 each.)

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