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Ras is a family of related proteins which is expressed in all animal cell lineages and organs. All Ras protein family members belong to a class of protein called small GTPase, and are involved in transmitting signals within cells (cellular signal transduction). Ras is the prototypical member of the Ras superfamily of proteins, which are all related in 3D structure and regulate diverse cell behaviours.
When Ras is 'switched on' by incoming signals, it subsequently switches on other proteins, which ultimately turn on genes involved in cell growth, differentiation and survival. Mutations in ras genes can lead to the production of permanently activated Ras proteins. As a result, this can cause unintended and overactive signaling inside the cell, even in the absence of incoming signals.
Because these signals result in cell growth and division, overactive Ras signaling can ultimately lead to cancer. The 3 Ras genes in humans (HRas, KRas, and NRas) are the most common oncogenes in human cancer; mutations that permanently activate Ras are found in 20% to 25% of all human tumors and up to 90% in certain types of cancer (e.g., pancreatic cancer). For this reason, Ras inhibitors are being studied as a treatment for cancer and other diseases with Ras overexpression.
KAC RAS with KAC vertical grip. Used with ordinary wear. For 20” bbl’s. Perfect for that A4 clone.
$220 cash, check, Venmo, CashApp, or PayPal Friends and Family.
Free shipping by Fed Ex ground in the Pacific Northwest. See my feedback and buy with confidence
As the title says.
P&S RAS Rail for a carbine m4 / AR15.
This is the same as the Knights Armament RAS rail, but was made under contract by P&S.
It’s well used, but in perfect working order.
It comes with all parts that it originally comes with.
Knights Armament RAS II M4 carbine rail system with there long rail panels and one short rail panel along with KAC vert. grip. Used very little, locks up solid, all mounting hardware included. I believe I have the box it came in as well.
$100 FTF in Newberg
Finally approved for my mk18 build, so letting my m4 build go to a good home. Let me know if you have any questions.
This Colt LE6920 (with M4 Carbine roll mark) started life as a a factory Magpul addition with the following:
-MOE SL handguards
-MOE SL carbine stock
-MOE SL pistol...
I picked this up from a well respected member from OR a while back. It is unfired. I have the box but I am not sure about the manual. F marked front site, ambi safety, carry handle. As it came from the factory. I have the original handguards as well. This has a brand new KAC M5 RAS on it with...
Wish I had time for this build. The elusive Knights Armament Free float RAS for the MK12 Mod1. It's been mounted a used for about a year. A few small scratches but all minor. Three rail panels are included as well as original box and papers. Purchased from operationparts.com
5 by kinkade7 posted...