5 Reinstall the recoil pad by tightening the two screws with the
3
⁄32
"
Allen wrench.
INVECTOR-PLUS™ CHOKE TUBE SYSTEM
New model BT-99 shotguns feature a barrel fitted with the Invector-
Plus™ choke tube system. Older BT-99s may also have the Standard
Invector™ tube system or a conventionally choked barrel. The
Invector-Plus system is a screw in choke tube system with interchange-
able tubes. You can confirm this by reading the inscription on the
right side of the barrel.
MARKING ON BARREL TYPE OF CHOKE
Invector™ Standard Invector Choke Tube System
Invector-Plus™ Invector-Plus Back-Bored Choke Tube System
No Choke Marking on Barrel Conventionally Choked Barrel
24
FIGURE 26
Cylinder
Full
Imp. Modified
Modified
Imp. Cylinder
Skeet
FIGURE 27
A — Invector Plus™ choke tube
B — Standard Invector™
choke tube
A
B
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 24
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