The Type “D” cylinder is engineered to provide the correct internal air volume for barrels between 301 and 400 mm. External machining maximizes heat dispersion from friction and air compression during firing cycles; the internal bore is mirror-polished to minimize friction and reduce wear on the piston head o-ring. 100% Made in Italy and declared Marui-compatible.

Technical specifications

Type: Cylinder TYPE “D” (CLTD), stainless steel CNC machined.

Intended barrel length: 301–400 mm.

External finish: machined to improve heat dissipation.

Internal finish: mirror polish to reduce friction and o-ring wear.

Compatibility: FPS cylinders are declared 100% Marui compatible; compatible platforms include SIG551, SCAR-L, ACR MASADA, A&K MASADA, PTS MASADA AKM, MASADA MAGPUL, M4A1, S-SYSTEM, SR16, LR300L, GR15 RAIDER L, G36K, TAR21 SHORT, UAR.

Material: stainless steel, CNC machined.

Key dimensions: inner bore 23.8 mm; outer diameter 25.4 mm; length 72.2 mm.

Origin: 100% Made in Italy.

Package contents

1 × FPS Cylinder TYPE “D” CLTD stainless steel CNC

Main benefit for the end user
A precision, durable replacement that improves thermal management and reduces internal friction in the cylinder/piston assembly, supporting more consistent firing cycles and longer component life.

Warnings & usage information (GSPR and Italian regulation compliant)

Verify part compatibility with your replica model before installation.

Installation must be carried out by qualified personnel or an authorized service center.

Do not modify the spare part: alterations may compromise safety and performance.

Avoid exposure to impacts, humidity or extreme temperatures during storage and use.

Inspect the cylinder for cracks, deformations or defects before installation.

Use lubricants suitable for gearbox internals; avoid non-recommended products.

Keep out of reach of children.

Do not tamper with the product in any way: any cutting, drilling, reshaping or unauthorized modification will compromise safety, function and compliance.

Ensure use complies with applicable Italian laws and GSPR consumer-safety requirements.