This is not a "hard use" BCG
This is considered a consumable part, AR's with dialed in gas and buffer systems will prolong the life of this item
Recommended gas systems- Mid length, Rifle Length, or similar
Aluminum carrier with Satin Gold Anodize (milspec buffer anodize color), C158 NP3 Dual Ejector Bolt with NP3 Cam pin
"How long does it last" The original unit is still being tested
everyday in a 12.5" mid length gas upper with high back pressure
suppressor, mostly on full auto, no abnormal wear so far.
Patent Pending
The K-SPEC BCG combines
multiple key features focused on increasing the reliability of your
AR15 style firearm no matter if you are running suppressed or
unsuppressed, and regardless of conditions. The K-SPEC is a truly plug
and play BCG that will accommodate whatever configuration your mission
requires.
For those running suppressed, the K-SPEC requires no additional
tuning or tweaking of the gas or recoil systems to run reliably. Like
all KAK BCGs, the K-SPEC is machined to the M16 full auto profile.
Reduced Peak DB Report
When used in conjunction with a silencer, the gas redirect produces a quieter report
See testing results here- Down Vent vs Side Vent DB reduction testing
Slotted Angled Carrier Rails
For enhanced functionality in adverse and rugged conditions such as sand, mud, dirt, and grime. These rail cuts are designed for debris disbursement, resulting in ultra-high functionality in the toughest conditions, including suppressor fouling and foreign contaminates. Strategically
located angle cuts in the rails result in fouling and debris being
moved into noncritical areas that are not in contact with the receiver
and do not affect the function of the firearm. aka sandcutter
Downward Gas Vents
In an effort to reduce the amount of debris and gas vented towards
the shooters face, the two standard gas relief ports have been relocated
from the ejection port side of the K-SPEC carrier and placed
underneath, in the magazine feed lip channels. Two additional emergency
relief ports have also been added to the bottom of the carrier to
mitigate structural damage in the event of a case head separation.
Testing has shown that venting the gasses through the magazine well has
no negative impact on the feeding or function of the magazine nor
ammunition, and any added heat is negligible.
Dual ejectors
The K-SPEC dual ejector system uses mil-spec ejectors and springs
that require no proprietary parts. Ejector holes are centered on the
lugs to avoid any reduction in strength of the bolt. The dual ejector
system increases the ejection reliability and adds consistency to the
ejection pattern. KAK Industry has been manufacturing dual ejector bolts
for the AR10/LR308 platform for over a decade and has used that
experience to create a durable and reliable dual ejector system for the
AR15 platform.
- Designed to function reliably in the toughest conditions
- Optimized for both Suppressed and Un-suppressed use, All uses – All Conditions
- Dual Ejectors for enhanced reliability
- Angled Carrier Rail Cuts for flawless function in adverse conditions and prolonged suppressed use
- Downward Gas Ports to reduce gas blowback to shooter
- Full Auto Profile
- Permatex added between Gas Key and Carrier Mating Surface
- Carrier-
7075 Aircraft Grade Aluminum, outside rails, bolt runs, and gas bores
ground to .0002 tolerances, Satin Gold Anodize Finish
- Bolt- C158 steel, outside diameters ground to .0002 tolerances, Shot Peened and MPI test, NP3 finish
- Firing Pin- 8740 steel, Swiss turned, heat treated, precision ground, chrome plated
- Cam Pin – 4140 steel, Swiss turned, heat treated, NP3 finish
- Extractor- 4140 steel, fully machined, Phosphate coated
- Extractor pin- S7 tool steel, ground, heat treated
- Ejector- S7 tool steel, ground, heat treated
- Gas
key – 4130 steel, heat treated, Chrome finish, secured with T25 torx
fasteners, torqued to spec, staked with hydraulic staking machine
- 6.2 oz
