--- product_id: 172147442 title: "WORKER 18KG Upgrade Spring Silver for Nerf Rival Kronos (XVIII-500)" brand: "worker" price: "99 Lei" currency: RON in_stock: true reviews_count: 12 category: "Worker" url: https://www.desertcart.ro/products/172147442-worker-18kg-upgrade-spring-silver-for-nerf-rival-kronos-xviii store_origin: RO region: Romania --- # 18KG spring power boost Enhanced ball speed & range Skill-required custom installation WORKER 18KG Upgrade Spring Silver for Nerf Rival Kronos (XVIII-500) **Brand:** worker **Price:** 99 Lei **Availability:** ✅ In Stock ## Summary > 🚀 Power up your game with precision and punch! ## Quick Answers - **What is this?** WORKER 18KG Upgrade Spring Silver for Nerf Rival Kronos (XVIII-500) by worker - **How much does it cost?** 99 Lei with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/172147442-worker-18kg-upgrade-spring-silver-for-nerf-rival-kronos-xviii) ## Best For - worker enthusiasts ## Why This Product - Trusted worker brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Heavy-Duty Performance:** Experience a noticeably tougher pull, signaling serious power in every shot. - • **Compatibility Guaranteed:** Specifically engineered for the Nerf Rival Kronos XVIII-500—no guesswork, just pure performance. - • **Unleash Maximum Firepower:** Upgrade your Nerf Rival Kronos with an 18KG spring for explosive shooting range and velocity. - • **DIY Installation Challenge:** Show off your tech-savvy side by installing this upgrade yourself—tutorials included for the savvy pro. - • **Precision Requires Mastery:** Fine-tune your blaster’s accuracy post-installation to dominate every match. ## Overview The WORKER 18KG Upgrade Spring Silver is a high-tension replacement spring designed exclusively for the Nerf Rival Kronos XVIII-500. It significantly boosts shooting range and ball speed, demanding a skilled installation and post-upgrade accuracy adjustments. Note: Blaster not included. ## Description Product description PLEASE NOTE Compatible with Nerf Rival Phantom Corps Kronos XVIII-500 The smaller the number of kilograms, the less difficult it is to modify. The product is suitable for people over 14 years old Please be careful installing the parts to avoid damage to your Nerf! 18KG Upgrade Spring SPECIFICATIONS Model: W0336 Color: Silver Material: Stainless Steel Product Size: 22 x 120mm, Wire Diameter 2mm Product Weight: 17.43g Packing Size: 50 x 190mm Package Weigh: 19.66g Package included: 1x Spring Set 18KG Upgrade Spring for Nerf Rival Phantom Corps Kronos XVIII-500 The spring has been tested before they come out to the marketplace. And we have designed different lengths and strengths so that to improve the shooting performance. By the way of lengthening the spring, the Kronos XVIII-500 will have greater power. There is no problem with the quality of our spring. But It does not determine that the buyer can install it successfully. Because of the cooperation of the transmitter and the spring makes people unable to pass, this is a human factor beyond our control. If you encounter difficulties during installation, we have some installation instructions or videos for support to show how to complete the Kronos XVIII-500 upgrade. Imported Piano Wire with an Anti-Fatigue Oxide Layer, Low Attenuation. Modification Upgrade, Replace the Original Spring, Improve Performance Initial Peed,Range, Accuracy. 100% Brand New and High Quality. It can Promote Shooting Range and Dart Speed. ## Features - Compatible with Nerf Rival Kronos XVIII-500 only. - Promote shooting range and ball speed, but need to adjust the blaster's accuracy by yourself. - Installing this spring for Kronos requires the player to have some skill level, or learn how to install it by watching a tutorial video. - After installation, the load will be very laborious. Please check whether the parts are installed correctly before installing the screws. - Blaster not included! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07S917BVH | | Age Range Description | Teen | | Best Sellers Rank | #151,676 in Toys & Games ( See Top 100 in Toys & Games ) #612 in Toy Foam Blasters | | Brand Name | WORKER | | Color | Silver | | Customer Reviews | 4.2 out of 5 stars 198 Reviews | | Educational Objective | Develop basic mechanical skills and hand-eye coordination through assembly and use | | Indoor Outdoor Usage | Outdoor | | Is Assembly Required | Yes | | Item Dimensions | 4.7 x 0.8 x 0.8 inches | | Manufacturer | WORKER | | Manufacturer Maximum Age (MONTHS) | 168 | | Manufacturer Minimum Age (MONTHS) | 168.00 | | Manufacturer Part Number | JGCWorker-959343 | | Material Type | Stainless Steel | | Model Number | JGCWorker-959343 | | Number of Players | 1-2 | | Operation Mode | Manual | | Set Name | Spring Set | | Size | 18 KG | | Supported Battery Types | No batteries required | | Theme | Nerf Rival | | Unit Count | 1.0 Count | ## Images ![WORKER 18KG Upgrade Spring Silver for Nerf Rival Kronos (XVIII-500) - Image 1](https://m.media-amazon.com/images/I/41RDQOfUU3L.jpg) ![WORKER 18KG Upgrade Spring Silver for Nerf Rival Kronos (XVIII-500) - Image 2](https://m.media-amazon.com/images/I/51vrdnKWA4L.jpg) ![WORKER 18KG Upgrade Spring Silver for Nerf Rival Kronos (XVIII-500) - Image 3](https://m.media-amazon.com/images/I/31ehmZVZTIL.jpg) ![WORKER 18KG Upgrade Spring Silver for Nerf Rival Kronos (XVIII-500) - Image 4](https://m.media-amazon.com/images/I/41nkEVJQdIL.jpg) ![WORKER 18KG Upgrade Spring Silver for Nerf Rival Kronos (XVIII-500) - Image 5](https://m.media-amazon.com/images/I/317SACZtpKL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***. on July 22, 2025* ### ⭐⭐⭐⭐⭐ Review *by J***N on January 26, 2024* ### ⭐⭐⭐⭐ Review *by V***D on June 13, 2024* ## Frequently Bought Together - WORKER 18KG Upgrade Spring Silver for Nerf Rival Kronos (XVIII-500) - Nerf Rival 50 Accu-Round Refill Pack --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ro/products/172147442-worker-18kg-upgrade-spring-silver-for-nerf-rival-kronos-xviii](https://www.desertcart.ro/products/172147442-worker-18kg-upgrade-spring-silver-for-nerf-rival-kronos-xviii) --- *Product available on Desertcart Romania* *Store origin: RO* *Last updated: 2026-05-05*