Product Description The Tapco TAP22099 magazine extension is designed to increase the capacity of compatible Glock 17 and Glock 19 magazines by +5 rounds. Built in a durable black finish and shaped for a secure, supportive grip at the base of the magazine, it&';s a practical upgrade for range use, training, and competition where extra capacity and improved handling are valued. Product Highlights +5 capacity increase for compatible Glock 17/19 magazines Durable construction in a clean black finish Extended base pad profile can improve magazine handling and reloads Designed specifically for Glock 17/19 fitment Compact upgrade that adds capacity without changing your firearm Specs Brand: Tapco Manufacturer Part Number: TAP22099 UPC: 810122800965 Product Type: Magazine extension / base pad Capacity Increase: +5 Firearm Fit: Glock 17/19 Color: Black Dimensions (L x W x H): 10.7 x 4.0 x 1.3 in Weight: 0.155 lb Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.