Shenzhen Sun Cycle Technology Co., Ltd. delivers tight-tolerance CNC components for the tactical, optics, outdoor and power tool industries. From prototype to production run — engineered to spec, on time, every time.
We are a Shenzhen-based precision machine shop with over 15 years of experience serving international brands in the tactical and outdoor equipment sectors.
Sun Cycle Technology was founded on a simple principle: every part that leaves our floor must meet spec on the first try. We work with small to medium production runs — typically 50 to 10,000 pieces — and take pride in being the partner that brands rely on when tolerances matter.
Our facility operates under ISO 9001:2015 quality management, with full in-house inspection capability including CMM, height gauges and optical comparators. We source materials from certified mills and maintain complete traceability from raw bar to finished part.
Whether you need a single prototype for a new product launch or a recurring production run, our engineering team works directly with your designers to optimize for manufacturability, cost and lead time.
Prototype in 7-10 days. Production lead time 15-25 days depending on complexity and quantity.
ISO 9001 certified. Full first-article inspection and dimensional reports with every shipment.
Work directly with our engineers — no sales layers, no communication gaps. Fast DFM feedback.
FOB Shenzhen. We ship to US, EU and UK customers via DHL, FedEx or your designated forwarder.
Our core product lines serve the tactical, optics and outdoor industries. Every part is CNC-machined to your drawing or sample.
MIL-STD-1913 compliant rails, flat or angle. Available in aluminum or steel, custom lengths and profiles.
Custom muzzle brakes and compensators in stainless or titanium. Porting patterns machined to your spec.
Night vision device mounts, dovetail and j-arm variants. Precision-machined for zero-repeatability.
Rifle scope tube assemblies, turret housings and adjustment bodies. Tight bore tolerances for optical alignment.
Custom handle scales and full-tang handle components in G10, micarta, aluminum or titanium.
Magazine bodies, followers and base plates. Investment cast or CNC machined per your design.
Tactical light bodies, bezel rings and tail caps. Heat-dissipating design with deep-pocket machining.
ARC and M-LOK helmet rails, shroud mounts and accessory adapters. Compatible with NVG and light systems.
Don't see your product? We machine virtually any precision component from your drawing. Send us your CAD.
Our equipment and material coverage is built for tight-tolerance production in volumes from prototypes to 10,000-piece runs.
| CNC Milling Centers | 18 units (3-axis & 4-axis) |
| 5-Axis Machining | 2 units |
| CNC Lathes / Turning | 12 units |
| Swiss-Type Lathes | 4 units |
| Tapping & Drilling | 6 units |
| EDM (Wire & Sink) | 2 units |
| Surface Grinders | 3 units |
| Tightest Tolerance | ±0.005 mm |
| Standard Tolerance | ±0.01 mm |
| Aluminum Alloys | 6061, 7075, 2024, 6082 |
| Stainless Steel | 303, 304, 316, 416, 440C |
| Titanium | Ti-6Al-4V Grade 5 |
| Brass / Copper | C360, C110, C17200 |
| Plastics | Delrin, PEEK, G10, UHMW |
| Anodizing (Type II & III) | Aluminum — matte / glossy |
| Black Oxide / Parkerizing | Steel components |
| Bead Blasting | SS, aluminum, titanium |
| Heat Treating | Through-hardening & case-hardening |
| Thread Rolling / Tapping | All standard UN / metric threads |
| Laser Marking | Logo, serial, part number |
| CMM (Coordinate Measuring) | 3 units — Zeiss & Mitutoyo |
| Height Gauges | 0.001 mm resolution |
| Optical Comparator | For profile & thread inspection |
| First Article Inspection | FAI report with every new part |
| Material Certificates | EN 10204 3.1 available on request |
| PPAP Support | Level 1–3 documentation available |
A closer look at our Shenzhen workshop, inspection lab and production floor. Clean, organized and running every day.
Everything you need to know before sending us a drawing.
Send us your drawing or sample. We'll respond within 24 hours with a quote and DFM feedback.