--- product_id: 534692048 title: "100 x 50 Cal. Aluminum Balls for Self Defense Fit for TR50" brand: "alien play" price: "¥5157" currency: JPY in_stock: true category: "Alien Play" url: https://www.desertcart.jp/products/534692048-100-x-50-cal-aluminum-balls-for-self-defense-fit store_origin: JP region: Japan --- # Snug .50 cal fit, no gas loss Top-class aluminum alloy 2.8g perfect weight 100 x 50 Cal. Aluminum Balls for Self Defense Fit for TR50 **Brand:** alien play **Price:** ¥5157 **Availability:** ✅ In Stock ## Summary > 🎯 Dominate your defense with precision-packed power! ## Quick Answers - **What is this?** 100 x 50 Cal. Aluminum Balls for Self Defense Fit for TR50 by alien play - **How much does it cost?** ¥5157 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/534692048-100-x-50-cal-aluminum-balls-for-self-defense-fit) ## Best For - alien play enthusiasts ## Why This Product - Trusted alien play brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Reusable & Reliable:** Smooth, no deform, no jams—built for repeated use without compromise. - • **Versatile Performance:** Ideal for home defense and target practice—fly straight, hit hard, stay ahead. - • **Premium Aluminum Alloy:** Solid, high-impact rounds that outperform rubber and nylon alternatives every time. - • **Precision Engineered Weight:** 2.8 grams for optimal impact and control—train and defend like a pro. - • **Perfect Fit, Zero Gas Escape:** Uniform .50 caliber size ensures consistent velocity and flawless accuracy. ## Overview These 100-pack .50 caliber aluminum balls from Alien Play deliver unmatched consistency and impact with a perfect 2.8g weight and premium alloy construction. Designed for TR50 and compatible models, they ensure a snug fit that prevents gas leakage, providing reliable velocity and accuracy. Durable and reusable, these rounds are a top choice for serious home defense and target shooting enthusiasts seeking professional-grade performance. ## Description Made from Top-class Aluminum Alloy. Solid, High Impact and Penetration. Fits for tr50/hdp50/hdr50/bp50 Perfectly. 2.8 Grams of Each Count, Perfect Weight for Training and Self Defense. Much Heavier And Powerful Than 50. Caliber Rubber Balls and Nylon Balls Which Are Too Light. Uniform Size of .50 Caliber, Snug Fit Without Gas Escaping for Good Consistency In Velocity. Great for Home Defense and Target Practice. Fly Straight, Hit Hard and Accurate. Smooth, No Deform, No Jams. Easy to Recover, Reusable Over and Over. ## Features - Made from Top-class Aluminum Alloy. Solid, High Impact and Penetration. Fits for tr50/hdp50/hdr50/bp50 Perfectly. - 2.8 Grams of Each Count, Perfect Weight for Training and Self Defense. Much Heavier And Powerful Than 50. Caliber Rubber Balls and Nylon Balls Which Are Too Light. - Uniform Size of .50 Caliber, Snug Fit Without Gas Escaping for Good Consistency In Velocity. Great for Home Defense and Target Practice. - Fly Straight, Hit Hard and Accurate. Smooth, No Deform, No Jams. Easy to Recover, Reusable Over and Over. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BZRGDF7N | | Best Sellers Rank | #19,970 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #3 in Paintball Paintballs | | Brand Name | Alien Play | | Caliber | 0.5 | | Color | Silver | | Cross Section Shape | Round | | Customer Reviews | 4.6 4.6 out of 5 stars (662) | | Included Components | hard material | | Item Highlight | 2.8 Gram Reusable .50 Caliber Aluminum Paintballs Ammo Projectiles for Training Fit for t4e HDR 50 Target Shooting | | Item Type Name | 50 cal aluminum paintballs | | Item Weight | 2.8 g | | Manufacturer | Alien Play | | Material Type | Aluminum | | Model Name | 50 Cal. Hard Aluminum Balls | | Number of Items | 100 | | Shape | Round | | Size | 50. Cal | | Sport Type | Paintball, Target Shooting | | Style Name | Classic | | Warranty Description | 90 days | ## Product Details - **Brand:** Alien Play - **Color:** Silver - **Model Name:** 50 Cal. Hard Aluminum Balls - **Size:** 50. Cal - **Sport:** Paintball, Target Shooting ## Images ![100 x 50 Cal. Aluminum Balls for Self Defense Fit for TR50 - Image 1](https://m.media-amazon.com/images/I/916wbmzcjaL.jpg) ## Questions & Answers **Q: Does it fit in a byrna?** A: These are 50 Cal aluminum balls which fit for T4E TR 50, HDP 50, etc. If you're looking for 68 Caliber balls, please try this: https://www.amazon.com/gp/product/B0BZRKHBKD **Q: How much does one ball weight in grams and also what is the actual diameter of one ball?** A: These are a hard plastic. They are .50 caliber which is 1/2 inch They are pretty light weight **Q: Will they stop a person or put them down** A: That I imagine would all depend on the person and if any thickness of clothing or armor to be a factor but it would hurt, I would imagine, and change most people minds of possibly doing you harm ## Frequently Bought Together - Alien Play 100 Rounds Solid Aluminum 50 Cal. Paintballs for Self Defense, 2.8 Gram Reusable .50 Caliber Powerful Aluminum Balls Fit for t4e TR50/HDR 50 (Aluminum, Silver) - 100 Rounds Solid Nylon 50 Cal. Paintballs 50 Cal Rubber Balls Ammo for Tr50 Reusable .50 Caliber Hard Plastic Projectiles for Self Defense - Umarex High-Grade CO2 Cartridges for Pellet Guns --- ## 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.jp/products/534692048-100-x-50-cal-aluminum-balls-for-self-defense-fit](https://www.desertcart.jp/products/534692048-100-x-50-cal-aluminum-balls-for-self-defense-fit) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-16*