Home / Competition Shotgun Parts & Upgrades / Stoeger / Magazine Extension Components / 20 Gauge Magazine Extension Tube 20 Gauge Magazine Extension Tube$34.95 20 Gauge Magazine Extension Tube only. Available in lengths +3 to +9. Be sure to select desired length. Available in black only. This tube can also be purchased as part of our MOA Precision 20 gauge Magazine Upgrade Kit. It fits on a variety of shotguns including Stoeger M3020 This is the tube only, kit sold separately. Length Choose an option+3+4+5+6+8+9Clear 20 Gauge Magazine Extension Tube quantity Add to cart SKU: 20g-tubex-1 Categories: 20 Gauge Stoeger Parts, Magazine Extension Components Additional information Reviews (0) Additional information Length +3, +4, +5, +6, +7, +8, +9 Reviews There are no reviews yet. Be the first to review “20 Gauge Magazine Extension Tube” Cancel replyYou must be logged in to post a review.