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SPRINCO USA AR 308 M4 EXTENSION TUBE XP BUFFER SPRING
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SPRINCO USA
AR 308 M4 EXTENSION TUBE XP BUFFER SPRING
36.9
36.9
1
GBP
Product no.: 943000049
SPRINCO USA 308 M4 EXTENSION TUBE CS XP BUFFER SPRING IN HARD TUBE
Mfr Part: 25762 657780257621 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.).
SPRINCO USA 308 M4 EXTENSION TUBE CS XP BUFFER SPRING IN HARD TUBE
Mfr Part: 25762 657780257621 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.).
Upgrade your AR with the SPRINCO USA 308 M4 Extension Tube XP Buffer Spring! 💪 Perfect for heavy calibers and over-gassed carbines.
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