Custom Parts (4862)

*If backordered, it may take 3-4 business days to 2 weeks. The ultimate inner barrel that satisfies SPARK custom engineers "Hiei®", a high-quality, ultra-precision inner barrel purely made in Japan,...

90° shear compatible Inner diameter: approx. 13 mm Outer diameter = approx. 22mm

This product is for you if you want another Versatile but don't want to buy another one! *It takes about two weeks from the start of ordering until the item...

This product is for you if you want another Versatile but don't want to buy another one! *It takes about two weeks from the start of ordering until the item...

The three films starring Clint Eastwood, "A Fistful of Dollars," "For a Few Dollars More," and "The Good, the Bad and the Ugly," sparked a huge boom in spaghetti westerns...

*If you order a product, it may take 3-4 business days to 2 weeks. A special push rubber for long-range customization, invented by SPARK, that uses a completely new method...

*If you order a product, it may take 3-4 business days to 2 weeks. Picatinny stock base for standard electric M4! By replacing the existing stock pipe, a Picatinny standard...

*If you order a product, it may take 3-4 business days to 2 weeks. High quality Japanese made tappet plate spring, a heavy duty type ideal for high cycle tuning....

The P90 transforms into a cutting-edge SMG! The P90 has good shooting performance, but it has a poor reputation for frequent feeding problems. The P90 Shell Mag was developed to...

The P90 transforms into a cutting-edge SMG! The P90 has good shooting performance, but it has a poor reputation for frequent feeding problems. The P90 Shell Mag was developed to...

Ver.2 of the popular P90 Shell Mag!! This is the ultimate item that allows you to equip two shell cartridges. The ammunition feed is switchable, allowing you to fire 60...

*If you order a product, it may take 3-4 business days to 2 weeks. A drum-type chamber with a barrel coaxial dial that prevents HOP adjustment from going out of...

*If you order a product, it may take 3-4 business days to 2 weeks. This is an O-ring for the Tokyo Marui Φ24mm piston. It is compatible with a wide...

*If you order a product, it may take 3-4 business days to 2 weeks. SPARK original anti-reverse latch and spring set! Made in Japan, SCM440 cutting. Its hardness rating of...

*If you order a product, it may take 3-4 business days to 2 weeks. SPARK's original main spring for electric guns is manufactured by a famous domestic spring manufacturer, achieving...

*If you order a product, it may take 3-4 business days to 2 weeks. CAT introduces the Tresor Muzzle Flash Unit! It supports both red and green glow-in-the-dark bullets and...

The popular SIERRA 5 KEYMO 556 silencer series by American firearms accessory manufacturer Dead Air Silencers has been a hot topic in Japan after being confirmed to be in use...

RGW has modeled the Helix QD 556K Suppressor made by OSS SUPPRESSORS! It is the suppressor of choice for U.S. Special Forces in response to the requirements of the CSASS...

RGW has modeled the Helix QD 556K Suppressor made by OSS SUPPRESSORS! It is the suppressor of choice for U.S. Special Forces in response to the requirements of the CSASS...

This is the latest improved LAW TACTICAL type AR-15/M16 GEN3-M folding stock adapter kit made by RGW. This innovative adapter, which converts M4/AR-15s into folding stocks, is a flagship product...

Standards common to the Stryker 9 series This is a buffer part that absorbs recoil shock, and although it has a much longer lifespan than the M45's recoil buffer, it...

Standards common to M45 series and HELLCAT series magazines This is a buffer part that absorbs recoil shock, so it is recommended that you replace it periodically. As it deteriorates,...

When comparing barrels with different inner diameters, the key point is whether or not they create air flow. As shown in the image, the 6.08mm has a large amount of...

When comparing barrels with different inner diameters, the key point is whether or not they create air flow. As shown in the image, the 6.08mm has a large amount of...