Welcome to the Home of the 6.8 SPC - 68forums.com.
It does actually reduce the impulse or is it felt impact. I agree how it feels is up to the end user. What it does do whihc I think points to a better cycling impulse is keeps the muzzle down. You will find the gun more controllable. I could get into all the technically of the spring but its rather boring. Suffice to say the spring is jsut not a strong spring that evenly slows the buffer across the whole cycle. It effect the cycle in a beneficial way with other properties that make it abetter setup for any gun whether yuou have a over gassed gun or one that is fine. This spring is a good addition to any AR. You can clip coils off it to tune it perfectly ofr your gun as well and one fo the reasons why I say good for any AR even the 3 gun with super lgiht weight fast impluse cycling setups.
Originally Posted by QuadBomb
He's on vacation and won't be shipping anything until at least 07 JUL. Anyplace else to get one?
You can get those springs from BCT.
Looks like I spoke too soon. That good ejection was apparently the result of a gas leak due to my gas key not being screwed all the way in. I tightened the screws on it and now it's ejecting at 2 o'clock. Maybe I will get that spring and buffer after all.
I also have the RRA upper but I get ejection around 3:30, as evidenced by the fact that I keep hitting the guy two lanes to my right with ejected brass.
Brownells has them If you have to have it now
Otherwise just order from Jason@BCT
Is the Tubb version equal in quality and performance?
Tubb SpeedLock Systems Flat Wire Buffer Spring AR-15 Rifle Chrome Silicon
"Chrome silicon alloy spring is heat-treated, stress relieved and shot peened to increase reliability and service life.
Bolt load is increased by 10% compared with Tubb round wire buffer springs
Provides a flatter recoil impulse
Requires about 6% less force to fully compress than Tubb round wire buffer springs
Less than 2% change in spring loading through 500,000 compression cycles
Duty rated for 1,000,000 cycles"
That's the same spring. Tubbs and Superior Shooting Systems are the same product.
Originally Posted by tulsamal
Good to know, thanks!
I just put a Tactical Springs extra power buffer spring in my 6.8 but haven't got to shoot it yet, does anyone have any experience with these springs? They seem to have even better spec's than the SSS springs so I bought a couple of their red springs for my carbines and a three pack of their extractor springs also.
Here is some info on the springs I use
WHAT MAKES OUR SPRINGS UNIQUE?
All our springs are constructed from Certified Chrome Silicon wire stock to withstand extreme heat and highly cyclic rate. The certification rating ensures a consistency in the parent material of 95%, which translates to repeatable consistency in performance & function. Certified Valve Quality Chrome Silicon wire is used in very high stress applications such as, NASCAR, Formula One, Moto GP & Pro stock racing motor valve springs. It is not uncommon in some of these applications for valve springs to see 15,000,000 compression cycles in one race. It is this extraordinary capability that made Chrome Silicon wire the obvious choice in our spring production vs. music wire used in OEM springs and by most aftermarket competitors. In addition, all of our Chrome Silicon springs are heat treated, stress relieved, and shot peened in separate post winding treatments. We also treat each spring with a proprietary, deep-penetrating, Re-Micronized (to .3 Micron particle size), inhibited, Molybdenum-Disulfide(MoS2) formulation to eliminate 90% of all mechanical wear on the spring. The combination of materials & processes result in a loss of no more than 5% in spring efficiency. We take our extractor springs one step further in the form of Cryogenic Processing. This computerized, ultra low temperature process (-320°F) increases the strength & wear life of the parent material through a change in microstructure resulting in less retained austenite and more uniformity. Why cryogenics for the extractor spring and not our other springs? Due to the size of the extractor spring, high stress cyclic rates and asymmetrical temperature exposure, premature wear and or shortened spring life can occur. Cryogenics effectively combats these issues giving the spring a very predictable & uniform performance within the operation of the weapon cycle. It is NOT recommended that a D-Fender™ ring be used when using our extractor springs. CRANE O-Rings may be used, but are not needed due to the strength and durability of the spring itself.
CONSTRUCTION SPECS BUFFER SPRINGS:
ASTM Grade A877 Certified Valve Grade Chrome Silicon Wirestock
Heat Treated, Stress Relieved and Shot-Peened post winding (Our springs are REALLY shot-peened)
Impregnation / Plating with Re-Micronized Moly Disulfide formulation
Hard plastic tube packaging for protected transport and easy storage
Optional Cryogenic Processing available
Shortened "lock time" for faster sight recovery and platform stability
Consistent spring pressure throughout the duty cycle of the spring, resulting in fewer malfunctions related to spring operation. (Especially Type III malfunctions)
Improved & consistent cyclic operation
Greater resistance to heat induced performance degradation
Reduced operating cost as fewer springs are needed during the life of the weapon
Less downtime and fewer trips to the armorer for spring replacement, in fact, this will most likely be the only buffer spring you will ever need for the duty cycle of your carbine!
Works reliably & consistently in all SBR platforms
APPLICATION SOLUTIONS (2 OPTIONS):
Extra-Power Buffer Spring, best option for 14.5" and 16" barrels with carbine length gas system platforms with standard front sight towers and H buffers, gas piston guns, and suppressed weapons. Color Coded RED.
Standard Buffer Spring, best option for all others, including some non-suppressed shorties, middy guns with adjustable gas blocks, 1st Gen M&P's, all Rock River Arms, uppers with light weight carrier groups (VTAC), etc. Color Coded BLUE.