Home / AR Upper Components / SPRINCO M4/AR-15 EXTRA POWER EXTRACTOR SPRING 4 COIL, CRYOGENIC PROCESSED View cart “SOLGW GAS TUBE NITRIDE PISTOL LENGTH” has been added to your cart. SPRINCO M4/AR-15 EXTRA POWER EXTRACTOR SPRING 4 COIL, CRYOGENIC PROCESSED$4.39 1 in stock [] SPRINCO M4/AR-15 EXTRA POWER EXTRACTOR SPRING 4 COIL, CRYOGENIC PROCESSED quantity Add to cart UPC: 25405 SKU: 25405 Category: AR Upper Components Product ID: 6637 You may also like… SPRINCO M4/AR-15 EXTRA POWER EXTRACTOR SPRING 4 COIL, CRYOGENIC PROCESSED $4.39 Add to cart Related products SOLGW GAS TUBE NITRIDE PISTOL LENGTH $19.00 Add to cart Out of stock SIONICS Gas Block Low Profile .750 $29.95 Read more Bravo Company Manufacturing GUNFIGHTER Charging Handle 556 Mod 4B – Medium Latch $74.95 Add to cart SOLGW GAS TUBE NITRIDE MID LENGTH $19.00 Add to cart