Barrel: 11.5” (29.2 cm) 1 in 7” (17.8 cm) Twist Cold Hammer Forged 32CrMoV12-10 Light Profile Chrome Lined
Caliber: 5.56mm NATO
Weight: 6.1 lbs (2.77 kg)
Length: 28” (71.1 cm) to 31.3” (79.5 cm)
Introducing the New KS and K Series ....., We should see them start to trickle in in small batches of 5 to 10 for now.
ORDER ALL KS/K/A2/A3 SERIES BY CALIBER, BARREL LENGTH, AND TYPE: RIFLE, PISTOL, SBR, or UPPER/LOWER Please, Thanks! Text Your Orders to Chuck at 305-923-6560 anytime, we will reply with Confirmation ASAP.
We will post daily on Current Stock Watch, beneath the home page slideshow.
KS/K/A2/A3 Series 5.56, .308, 6.5 Rifles, SBRs, Uppers, and Lowers, COMING....Check here for pricing info
Knights Armament Company, SR-15 KS-3 MLOK Upper Receiver #121437, The newest model w/3.2 bolt head, knotch rec & Ambi handle.
MSRP $1800, ADD $50ship + $36ins = $1886 x 3% cc $56 = $1942 for UPS Next day air shipping with full insurance = $1942 Total,
I'll charge you $1940 Delivered to your dealer.
The Short Barrel uppers less than 16" comes with a Black H2 buffer. Make sure to use ONLY this buffer in any AR15 lower so the gun functions properly with the shorter barrel. (I Cannot and Will Not sell a Short Upper and a Lower with a Stock on it!) That is an Illegal SBR! All the SR15, SR30 and SR25 Lowers are available. Each lower Leaves Knights as a LOWER RECIEVER ONLY! IT IS NOT A PISTOL OR RIFLE; ITS A LOWER RECEIVER AND YOU MUST USE THE "OTHER" BOX ON THE ATF 4473.
You can Form 1 the Lower as an SBR WHEN YOU RECEIVE IT. *IT IS ILLEGAL TO PUT A LOWER ON A SHORT BARREL UPPER TILL YOUR FORM 1 IS APPROVED FROM ATF!
ALL NFA RULES APPLY
PLEASE READ....More Coming for Sure, BUT NO ETA OR UPDATES FROM KNIGHTS! (THEY SEND EM AS THEY MAKE EM) You can Email
5.56mm SR-15 KS-3, 11.5″-Upper Receiver Kit
PN:121437
Barrel: 11.5” (29.2 cm) 1 in 7” (17.8 cm) Twist Cold Hammer Forged 32CrMoV12-10 Light Profile Chrome Lined
Caliber: 5.56mm NATO
Weight: 6.1 lbs (2.77 kg)
Length: 28” (71.1 cm) to 31.3” (79.5 cm)
32CrMoV12-10 is a high-strength European-standard alloy tool steel with a higher chromium content, whereas 4150 is an American-standard, medium-carbon chromium-molybdenum alloy steel. Both are widely used for demanding applications like firearms barrels and high-stress machinery parts, but 32CrMoV12-10 generally offers superior toughness and fatigue resistance.
32CrMoV12-10 (often related to GKH® or ARMAD® grades) is a high-performance chromium-molybdenum-vanadium alloy steel specifically engineered for advanced gun barrels and cannons, offering superior strength, toughness, and thermal stability compared to traditional, lower-alloy cannon steels. It is designed to withstand the high pressures, temperatures, and wear generated by modern, high-velocity ammunition.

