Powered by a 12g disposable CO2 cartridge or re-fillable internal air system, it features a blowback design and 9 shot capacity magazine using .43 caliber paintballs or rubberballs. The trigger is double-action (DA/SA). First versions did not have a conventional on/off safety. Current versions now have a manual trigger-lock safety. The marker is cocked by working the slide and there is also a functional de-cocker. It differs from the RAP4/5 system as it does not use (and therefore) eject shell casings. Muzzle velocity is adjustable between 200ft/s and 300ft/s. For .43 cal paintball - 0.029 oz it is about 3.4371 J (at 300ft/s).
The RAM P99 looks, feels and shoots with great accuracy just like the Walther P99 firearm making it ideal for law enforcement and military training, especially close quarter battles and room clearings. The RAM P99 is also used for virtual reality paintball play.
Rap1 (Ras-proximate-1 or Ras-related protein 1) is a small GTPase, which are small cytosolic proteins that act like cellular switches and are vital for effective signal transduction. There are two isoforms of the Rap1 protein, each encoded by a separate gene, RAP1A and RAP1B. Rap1 belongs to Ras-related protein family.
GTPases are inactive when in their GDP-bound form, and become active when they bind to GTP. GTPase activating proteins (GAPs) and guanine nucleotide exchange factors (GEFs) regulate small GTPases, with GAPs promoting the GDP-bound (inactive) form, and GEFs promoting the GTP-bound (active) form. When bound to GTP, small GTPases regulate myriad cellular processes. These proteins are divided into families depending on their protein structure, and the most well studied is the Ras superfamily, of which Rap1 is a member. Whereas Ras is known for its role in cell proliferation and survival, Rap1 is predominantly involved in cell adhesion and cell junction formation. Ras and Rap are regulated by different sets of guanine nucleotide exchange factors and GTPase-activating proteins, thus providing one level of specificity.
RAP6 is the abbreviation for Rab5-activating protein 6, a novel endosomal protein with a role in endocytosis. RAP6 was discovered by Alejandro Barbieri and his group of researchers (Christine Hunker, Adriana Galvis, Ivan Kruk, Hugo Giambini, Lina Torres and Maria Luisa Veisaga) working at Florida International University.
The original GeneBank Identifications (GIs) have been published in the NCBI Nucleotide databases with GIs 77176718 and 77176720. Since then, many names have been coined to the validated protein such as RabGEF1, GeneID: 27342. RAP6 belongs to the family of the GAPVD1, GeneID: 26130