Diana™ Grade Extended Tubes

Titanium nitride for durability and hardness. Optimal patterns for Invector Plus shotguns. 

The Gold Standard for choke tubes. What makes it different? First . . . the longer choke taper inside Diana Grade Invector-Plus choke tubes improves pattern performance. These tubes are for use with back-bored barrels on 12 and 20 gauge shotguns. But they offer a superior construction from stainless steel bar stock that is heat treated prior to machining. The use of a titanium nitride surface with 72HRC hardness provides excellent wear and reduced plastic buildup. And they look very, very good on the muzzle end of your Browning Citori.

  • Longer choke taper inside Invector-Plus choke tubes for use with back-bored barrels on 12 and 20 gauge shotguns
  • Stainless steel barstock is heat treated prior to machining
  • Titanium nitride surface 72HRC hardness for excellent wear and reduced plastic buildup
  • Absolutely perfect concentricity for superior patterning
  • Extends beyond the barrel for easy removal and installation
  • 28 gauge are Standard Invector chokes.
 
Item Selector
Item Description MSRP More Options
Item Number 1130503 UPC 023614202530
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 12
Length 0" Weight 4.8 oz
MSRP $99.99
Item Number 1130513 UPC 023614201649
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 12
Choke Pattern Percentage 15%-45% Length 0"
Weight 4.8 oz MSRP $74.99
Item Number 1130533 UPC 023614201670
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 12
Choke Pattern Percentage 30%-60% Length 0.015"
Weight 4.8 oz MSRP $74.99
Item Number 1130553 UPC 023614201700
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 12
Choke Pattern Percentage 55%-85% Length 0.035"
Weight 4.8 oz MSRP $74.99
Item Number 1130563 UPC 023614201694
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 12
Choke Pattern Percentage 45%-75% Length 0.025"
Weight 4.8 oz MSRP $74.99
Item Number 1130573 UPC 023614201687
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 12
Choke Pattern Percentage 35%-65% Length 0.02"
Weight 4.8 oz MSRP $74.99
Item Number 1130583 UPC 023614201663
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 12
Choke Pattern Percentage 25%-55% Length 0.01"
Weight 4.8 oz MSRP $74.99
Item Number 1130593 UPC 023614201656
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 12
Choke Pattern Percentage 20%-45% Length 0.005"
Weight 4.8 oz MSRP $74.99
Item Number 1131033 UPC 023614202226
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 20
Choke Pattern Percentage 30%-60% Length 0.015"
Weight 4.8 oz MSRP $74.99
Item Number 1131053 UPC 023614202257
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 20
Choke Pattern Percentage 55%-85% Length 0.035"
Weight 4.8 oz MSRP $74.99
Item Number 1131063 UPC 023614202240
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 20
Choke Pattern Percentage 45%-75% Length 0.025"
Weight 4.8 oz MSRP $74.99
Item Number 1131073 UPC 023614202233
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 20
Choke Pattern Percentage 35%-65% Length 0.02"
Weight 4.8 oz MSRP $74.99
Item Number 1131083 UPC 023614202219
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 20
Choke Pattern Percentage 25%-55% Length 0.01"
Weight 4.8 oz MSRP $74.99
Item Number 1131093 UPC 023614202202
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 20
Choke Pattern Percentage 20%-45% Length 0.005"
Weight 4.8 oz MSRP $74.99
Item Number 1132133 UPC 023614202288
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 28
Choke Pattern Percentage 30%-60% Length 0.015"
Weight 4.8 oz MSRP $74.99
Item Number 1132153 UPC 023614202318
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 28
Choke Pattern Percentage 55%-85% Length 0.035"
Weight 4.8 oz MSRP $74.99
Item Number 1132163 UPC 023614202301
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 28
Choke Pattern Percentage 45%-75% Length 0.025"
Weight 4.8 oz MSRP $74.99
Item Number 1132173 UPC 023614202295
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 28
Choke Pattern Percentage 35%-65% Length 0.02"
Weight 4.8 oz MSRP $74.99
Item Number 1132183 UPC 023614202271
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 28
Choke Pattern Percentage 15%-45% Length 0.01"
Weight 4.8 oz MSRP $74.99
Item Number 1132193 UPC 023614202264
Material 17-4 Stainless Steel Color Titanium Nitride
Pockets Titanium Nitride Choke Gauge 28
Choke Pattern Percentage 20%-45% Length 0.005"
Weight 4.8 oz MSRP $74.99

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