Overview Extend your shooting abilities. These tubes are longer for better patterning and quick installation and removal with your fingers, if necessary. Constructed of highly polished stainless steel for the ultimate in performance and durability Knurled portion extends beyond the end of the barrel for easy removal and installation Longer choke taper inside Invector-Plus choke tubes for use with back-bored barrels Produces excellent patterns with uniform densities Set to industry constriction standards Available in constrictions from Skeet to Full Fits 12 gauge Invector-Plus back-bored barrels ONLY Invector-Plus Extended choke tubes fit only Browning shotguns designed for Invector-Plus and are NOT for use in shotguns showing Standard Invector or Invector-DS on the barrel(s). Click here to learn more about Browning choke tubes. Specifications Type EXTENDED,INV PLUS,LT MOD, 12 EXTENDED,INV PLUS,FULL,12 EXTENDED,INV PLUS,IMP MOD,12 EXTENDED,INV PLUS,MOD, 12 EXTENDED,INV PLUS,IMP CYL, 12 EXTENDED,INV PLUS,SKEET, 12 Item Number 1132233 UPC 023614048404 Material 17-4 Stainless Steel Color Stainless Steel Pockets Stainless Choke Gauge 12 Choke Pattern Percentage 30%-60% Length 3.125" Weight 4.8 oz MSRP $51.99 Item Number 1132253 UPC 023614048374 Material 17-4 Stainless Steel Color Stainless Steel Pockets Stainless Choke Gauge 12 Choke Pattern Percentage 55%-85% Length 3.125" Weight 4.8 oz MSRP $51.99 Item Number 1132263 UPC 023614048381 Material 17-4 Stainless Steel Color Stainless Steel Pockets Stainless Choke Gauge 12 Choke Pattern Percentage 45%-75% Length 3.125" Weight 4.8 oz MSRP $51.99 Item Number 1132273 UPC 023614048398 Material 17-4 Stainless Steel Color Stainless Steel Lite Pipe Colors 4.8 oz Screw Sizes 26.0 Lite Pipe Shapes 49.99 Sight Tools 44.35 Pockets Stainless Choke Gauge 12 Choke Pattern Percentage 35%-65% Length 3.125" Sling Adjustments 83.99 Sling Hardware 49.99 Weight 4.8 oz MSRP $51.99 Item Number 1132283 UPC 023614048411 Material 17-4 Stainless Steel Color Stainless Steel Quantity 4.8 oz Rib Width 26.0 Screw Sizes 49.99 Lite Pipe Shapes 44.35 Sight Tools 83.99 Pockets Stainless Choke Gauge 12 Choke Pattern Percentage 25%-55% Length 3.125" Sling Pad 49.99 Weight 4.8 oz MSRP $51.99 Item Number 1132293 UPC 023614048428 Material 17-4 Stainless Steel Color Stainless Steel Pockets Stainless Choke Gauge 12 Choke Pattern Percentage 20%-45% Length 3.125" Weight 4.8 oz MSRP $51.99 Recommended New Maxus II Stalker $1,859.99 12 Gauge T-Wrench – Fits all Browning Choke Systems $25.99 Moldable Ear Plugs $41.99 Dry Fire Gore-Tex Paclite® Jacket $157.99 Nitro Case – Shotgun $72.99