HTM Scope: (or scopes w/o razor fire pin option)
Late 2006 model HTM scopes have an 8-32 tapped hole thru the scope housing at 1 or 11o’clock (RH/LH).
If your HTM scope does not have the 8-32 tapped hole in it already, it will need to be added. (see photo 1)
Using #44 drill bit (.089” dia), drill out small BOTTOM hole of scope, do not drill into level vial. Secure Sight Pin Light (SPL)
onto Scope using Cable Clamp, small brass washer and 8-32 Button Head Screw, as shown, (Photo 1). Cut off 1/16” of
Rubber Cap, keep closed end piece and discard open piece, (Photo 2). Bend wires coming out of SPL along side of knurling
(do not bend wires back & forth). Press Rubber Cap over wires and knurling until Rubber Cap is flush with Cable Clamp,
(Photo 3). Insert .086 tubing (W/O FIBER) through drilled out hole & almost to top of level vial. Insert Stainless Steel Pin into
tubing and 3/32” out of Scope. Carefully secure tube/SS Pin with set screw, (Photos 4 & 5). Wrap tube around scope and
along OUTSIDE of Cable Clamp holding SPL. Using X-ACTO Knife or equivalent, CAREFULLY cut off end off tube at about
mid point of Cable Clamp, (Photo 6). Slip one Cotter Pin over FP Tube & insert into side hole of scope. Insert 2nd Cotter Pin
over tube & insert Cotter Pin into top hole of scope simultaneously inserting tube into SPL. The tube should go into SPL about
3/8”. Cut length of tube if necessary. Cut Cotter Pins to fit, (Photo 7).
Photo 1
Photo 2
Photo 3
Photo 4
Photo 5
Photo 6
Photo 7
Loosen set screw and remove SS Pin from tube in scope. Cut off one end of Fiber at a SHARP ANGLE and feed through SS Pin
from long end toward curved end of SS Pin, (Photo 8). Cut fiber end square to SS PIN end. Flare viewing end of fiber to desired
size. Heated short end of 1/32” Allen wrench works well. Pull Fiber flush to SS Pin. Set aside SS Pin with fiber, (Photos 9 & 10).
Remove tube from SPL and two Cotter Pins from top and side of scope. Keep tube in bottom hole of scope and CAREFULLY
feed end of fiber (w/o SS Pin) into tube from inside the scope. Be extra careful to AVOID kinking fiber as you insert SS Pin into
FP Tube near the Level Vial, (Photo 11). Align SS Pin left & right with Scope center and tighten down Set Screw. If necessary,
carefully bend SS Pin toward/away from Level Vial in order to center SS Pin vertically, (Photos 11 & 13). Cut Fiber ~3/16” past
end of tube. Flare fiber until flush with tube using heated short end of 1/8” Allen wrench, (Photo 12 & 13). Re-insert Cotter Pin
with tube into side hole and secure with Set Screw. Insert Cotter Pin with tube into top hole and simultaneously into SPL, and
secure with Set Screw, (see photo 14). Continue to STEP 3 of GENERAL INSTALL. INSTRUCTIONS, Pro-Light DX & Power
Pack Installation.
Photo 8
Photo 11
Photo 12
Photo 13
Photo 14
Photo 9
Photo 10
Sword Scope
Sure-LOC Black Eagle Scope
Viper Scope
Sight Pin Light (SPL) Installation Instructions: Competition Scopes
Recommended Installation Method
When used with Sure-Loc Sight
Optional
Installation Method
P-3
Above configuration is an awesome setup.
“BUT” requires modifications not easily done by most customers or shops.
Remove current fiber and Pin. Drill an .094” dia. hole thru bottom of housing where fiber goes thru scope hous-
ing. Be careful new .094” dia. hole is centered with pre-drilled hole in scope, drill bit will want to move Off-
Center. With Viper-Pin secured upside down in a vise/end mill; drill an .090”-.091” (2.3mm) hole ~.150” -.170”
max deep into hole for fiber (in-line w/SS tube). Press .094” tubing into .091” hole, it will be tight, but it needs to
be. Reinstall Viper Pin, feeding tubing thru new .094” drilled hole in scope, reinstall SS SHCS to hold pin in
place, allow tubing to hang loose. Secure SPL with cable clamp, 8-32 button head screw & brass washer, as
shown in above 2nd picture. Wrap tubing around scope in fiber channel, laying along side of SPL cable clamp.
Cut tubing at middle of cable clamp. Insert tubing into SPL, it should insert into SPL about 5/16” and not be
loose in fiber channel, cut if too long, see above 3rd picture. Remove tubing from SPL, insert fiber from Pin
end thru tubing and leave ~1/8” long at Pin end and 1/4” long at Tubing end. Flare Pin end at least a little (or
to preferred size) to smooth out surface. Pull fiber from other end so fiber is flush at Pin end. Flare fiber at
SPL end at least to .060 & up to dia. of tubing (~.090). Secure tubing on side of Viper Scope housing with a
short piece of small dia. wire (twist-tie w/plastic coating removed works well). Insert small (twist-tie) wire thru
small hole original fiber was initially secured at, see above pics 3 and 4. Twist wire around tubing, trim and
press out of way. Finish by following steps 2-10 of General Installation Instructions P-1.
For both installations above, use smaller (.086” OD) tubing included in PLDX kit.
For Installs with Sure-LOC Black Eagle Scope & Sure-LOC Sight:
Remove SS 6-32 SHCS in windage block, closest to scope housing. Reinstall 6-32 screw with small brass
washer, cable clamp and SPL as shown, do not tighten screw completely. Cut off at ~45 degrees a small
amount off of one end of tubing, then carefully push tapered end thru pre-drilled hole in bottom of scope until
close to height of level vial, (if necessary, remove vial, install tube, then reinstall level vial). Run tube around
scope as shown and along side of SPL/cable clamp, and cut tube at middle of cable clamp. Check length of
tube by inserting thru cotter pins and into SPL, trim if needed. After tubing is cut to correct length, refer to steps
3, 4 & 5 of CBE Installation Instructions P-2, for inserting and flaring fiber ends instructions. Finish by following
steps 2-10 of General Installation Instructions P-1.
For Installs with Sure-LOC Black Eagle Scope & Non Sure-LOC Sight:
Mount SPL to side of Sure-Loc Scope using cable clamp and 10-32 button head screw, see picture above right.
Mount SPL pointing up and slightly towards lens. Follow above tubing and fiber installation instructions, except
route tube going down into SPL. After tubing is cut to correct length, refer to steps 3, 4 & 5 of CBE Installation
Instructions P-2, for inserting and flaring fiber ends instructions. Finish by following steps 2-10 of General
Installation Instructions P-1.
Remove original fiber and tubing, cut tubing at windage rod anchor points. Remove sight pin from scope
housing. Drill and tap an 8-32 tapped hole in center of top rib, see page 2 for adding 8-32 tapped hole.
Refer to steps 1-10 of CBE Installation Instructions page 2. Finish by following steps 2-10 of General
Installation Instructions P-1.
