Springco carbine action spring

Springco carbine action spring

Your Price: $19.95
In Stock.
Part Number:Springco carbine action spring

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Springco buffer spring option
"BLUE Spring” ENHANCED Power Buffer Spring, Offers improved performance with most non-suppressed 12.5"-14.5" SBR's, 16" DI Mid-Length BBLS, and all mid-length uppers with adjustable gas blocks. Best performance is usually achieved using buffers ranging from ST-2T, H2, DPMS Extra Heavy Buffer. Will run in 18"+ Length BBL RRA'S with ST-T2 Buffers. Color Coded BLUE.


“RED Spring” EXTRA Power Buffer Spring, Best option for 16"+ 5.56 barrels with carbine length gas system platforms with standard front sight towers and H buffers, 16" + BBL gas piston guns, *some* suppressed shorties,and later generation Colt LE6920's, 9mm, 6.8 SPC, 6.5 Grendel, .458 SOCOM, 450 Bushmaster, .500 Beowulf, and assorted "Thumpers" using standard 7" depth M4 extension tubes. AR-10 Carbines (E.G. Armalite, Noveske, LMT) using deeper extension tubes and standard length carbine buffers to accommodate the longer .308 BCG also use the "RED" Spring. Please call us to discuss successful historical "recipes" for implementation of the RED spring in .308, 6.8 SPC, etc. RIFLE length extension tube platforms. Color Coded RED. NOTE: NOT for use in .308 Carbines using standard 7" M4 extension tubes and short, stubby buffers. (Use our "ORANGE Spring" below for that specific platform approach application.) NOTE: If you have a seriously overgassed .308 Carbine which has the deeper AR-10 platform receiver extension tube running an H3 buffer firing 175 Gr. Projectiles and / or suppressed, many shooters have experienced success using the "ORANGE" spring, as it is still heavier than a "RED" spring in that application.

"GREEN Spring" In addition to use in 5.56 Fixed Stock Rifles, our “GREEN Spring” is just the ticket for use in the VLTOR A-5 Stock System using their appropriate weight buffer for maximum versatility in tuning almost any upper configuration, running both with or without a "can". Color Coded GREEN.



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