Sprinco AR15 buffer springs are made from high quality Chrome Silicon
wire stock which is used in a variety of applications from Formula One
to motor valve springs which can see up to 15,000,000 compression cycles
in a single race. This makes it the perfect choice for a carbine which
will see far less cycles than that over it’s lifetime. In order for this
carbine buffer spring to retain its strength, Sprinco heat treats, shot
peens, and treats each spring with a proprietary formula that retains
spring efficiency for as long as you have your rifle. The Sprinco carbine buffer spring is a great option to improve the
long-term reliability of your AR15.
YELLOW-Reduced Power Buffer Spring. We collaborated with two prominent
commercial ammunition manufacturers and two prominent gunsmiths to
arrive at the design for the Yellow spring. It’s approximately 20% lighter than the White
spring, and was the consensus choice out of 4 different
evaluation samples provided to all parties. They all added in their
final evaluations that if a particular gun needed a lighter spring, that
the gas port should be enlarged
for overall reliability. The Yellow spring is also appropriate
for with low power SRTA training or SIMS Rounds for training operations. Color Coded Yellow
WHITE-Standard Power Buffer Spring. Equivalent spring load to a brand
new Mil-Spec M4 Carbine Spring. This spring will perform reliably in any
properly configured and maintained 5.56 Carbine, if you wish to
maintain the performance
of
a "fresh" Mil-Spec load spring without concern for replacement.
This is the best choice for shooters and purists that wish to maintain
the performance of most factory supplied new Mil-Spec springs, but do
not wish to be concerned with
frequent replacement of same or do not have the time or
inclination to seek enhanced performance options. Just consider it as
permanent new Mil-Spec spring. Color Coded WHITE
HOT WHITE-Intermediate Power Buffer Spring. The Hot White spring came to
life as an accident that turned out to be a valuable solution for
certain platforms. We did a production run of White springs where the
loads came in perfectly
between the design loads of the White and Blue spring, so
we sat them aside and did another run of White springs to the proper
load specifications. When we had some calls from customers wishing for a
spring that was in between
the performance of a White or Blue spring, we had them try out
the discarded springs on a trial basis, and they turned out to be
perfect for their needs, thus, the evolution of the Hot White spring for
tuning purposes. If you are
among
those who are advocates of using Mil-Spec carbine springs rather
than tuning to perfection, this is also a good choice in the vast
majority of instances to enhance performance. Color coded RED & WHITE.
BLUE-Enhanced Power Buffer Spring. The design loads of the Blue spring are approximately 15% greater than the White spring
for one of the considered Load Constants in the spring design. Refer to
provided tuning procedure
reference documents prior to calling for recommendations. We were
encouraged to manufacture the Blue spring by Mike Pannone of CTT
Solutions, who modified one of our Red springs and recommended that we
offer a spring with the loads of
the Blue spring to address the high performance demands of other
specimen platforms. While contemporary internet forum lore leans towards
the use of the Blue spring with an H2 or ST-T2 buffer for 14.5 - 16” Mid-length gas
carbines, nothing is set
in stone due to the vast range of gas port values in the wild
that have come into play since we first entered the arena. Color Coded BLUE
RED-Extra Power Buffer Spring. This was our first AR buffer spring
solution that we were tasked to design back in 2006 for a Force
Modernization Team to specifically address spring-related M4 carbine
reliability function issues
for
operating challenges in the Eastern Asia Theatre. The design
loads of the Red spring are approximately 25% greater than the White spring
for one of the considered Load Constants in the spring design. Refer to
provided tuning
procedure reference documents prior to calling for
recommendations for use. The Red spring is commonly used in 9mm, 6.8
SPC, 6.5 Grendel, .450 BM, .450 SOCOM, .500 Beowulf, and Colt LE6920’s
specimen carbines, but certain specimen
guns
can deviate from the norm depending upon port values and the
power factor of your chosen ammunition loads. Color Coded RED.
NOTES: The RED spring is appropriate for moderately gassed .308
/ 6.5 CM / .260 Rem heavier caliber carbine platforms using AR-10 /
SR-25 Pattern (Armalite, LMT, LaRue, KA.C, etc. receiver extensions and
3.25” carbine buffers. NOT
for
use in “DPMS Pattern”.308 Carbines using standard 7" deep M4
extension tubes and short, 2.5” buffers. (Use our "ORANGE” Spring" for
that specific platform approach application.)
ORANGE-Extra Extra Power Buffer Spring. The Orange spring is much stouter than the Red spring.
The Orange buffer spring was originally engineered for the demands
presented by.308 / 6.5 CM / .260 Rem, etc., heavy BCG carbine
DPMS Pattern applications using standard 7" Depth M4
extension tubes and short 2.5" buffers (Including aftermarket "heavy
buffers") in robustly gassed 16” - 18” ML gas carbine platforms, but has
been proven to be a requirement
for tuning over gassed carbines of any equivalent heavy calibers
in AR-10 pattern tubes with 3.25" buffers or lesser calibers (5.56,
etc.). Color Coded ORANGE.
Don't clip coils from any of our other buffer springs in
order to yield a lighter spring load for DPMS pattern applications.
Doing so will result in an unknown spring load and might damage the gun.
NOTES: If your build is yielding a solid 1:30 to 2:00 O'clock
ejection trajectory, then start with an Orange spring and tune it with
the buffer weight. Empirical evidence has shown a heavier spring and
lighter buffer produces better
performance than a lighter spring and heavier buffer.
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