Home Gun Systems Switches Perforating Accessories Services About Contact PerfStorm™ Prewired Disposable Gun System Faster Assembly, Increased Reliability, Lower Cost SWM’s PerfStorm™ prewired, disposable gun system builds on our experience designing and manufacturing more than 10 million perforating gun systems. The advanced system eliminates wiring guns in the field and significantly reduces onsite assembly time. The PerfStorm system offers greater safety and reliability than ordinary designs, and it reduces the total cost of your perforating operations. Benefits Redundant grounding, with multiple contact points Wire-free connections and feedthroughs Compatible with all common shaped charges and addressable switches SWM PerfStrike™ Compact Addressable Switch Shock, temperature, and pressure tested Cost effective Specifications Feature Value Number of shots 1 to 30 OD 2-1/2, 2-3/4, 3-1/8, 3-3/8 in. Shot density (shots per foot) 1, 2, 3, 4, 5, 6 Phasing Any angle Shape Charges Standard Sizes Pressure 20,000 psi Subs Reusable or disposable Temperature 300°F REQUEST A QUOTE GUN CONFIGURATIONS SUB SELECTION GUIDE NEWS CAREERS PRIVACY POLICY TERMS OF USE © 2021 SWM International. All rights reserved

Home Gun Systems Switches Perforating Accessories Services About Contact History of SWM SWM began in 1980 when Sid Mauldin left his employer to start his own company called “Specialty Welding.” Starting with a single customer, a pickup truck, and a small shop building, Specialty Welding got its start by repairing perforating guns. Sid’s high-quality repair work alongside his customer-first approach soon garnered the attention and respect of the wireline industry. After years of helping Sid after hours and on weekends, Dawna Mauldin officially joined her husband full-time in 1999. Specialty Welding transformed and grew over the years. Shortly after Dawna joined the company, they began investing in machining capabilities and manufacturing new perforating guns. With the new machines, the company was able to greatly improve the manufacturing quality, efficiency, and cost of perforating guns and subs. In 2006, the company moved to a larger facility to house its expanding manufacturing capability, which today is over 100,000 square feet. Specialty Welding soon took on the name “SWM International” and rapidly grew by providing its customers with high-quality, reliable products. The company has developed numerous different proprietary perforating tools over the years and continues to do so today. SWM, now solely run by Dawna, has become a leading provider of perforating tools and continues to provide world-class service to wireline companies. The company remains headquartered in its hometown, Pampa, TX, where it manufactures and assembles its array of product offerings. SWM Facility located in Pampa, TX NEWS CAREERS PRIVACY POLICY TERMS OF USE © 2021 SWM International. All rights reserved

Home Gun Systems Switches Perforating Accessories Services About Contact Hardware & O-Rings Retainer Nuts Top Sub Kits Firing Head Kits Port Plugs Cable Head Components Cable Head O-Rings NEWS CAREERS PRIVACY POLICY TERMS OF USE © 2021 SWM International. All rights reserved