Siler's left Mountain percussion lock is a classic, circa 1830 - 1850 style, with rounded tail, and notched for our 1/2" powder drum.
If you enjoy tinkering with internal lock parts, you will discover that our Siler kit can be assembled into a fine lock. All holes in the plate are spotted. A drill guide is included to aid you in accurate alignment of parts. All springs are tempered. Our kits are complete with Siler's instructions for assembly and tempering in your home shop.
Assembly requires the skilled use of a drill press, vise, fractional drill bits in sizes 5/64", 7/64", 9/64", 11/64" and 15/64", a No. 19 drill bit, and 8-32 tap. We offer all these drill bits and taps.
Make an error during assembly? No problem. We stock all spare parts!
Do not cut the drum notch deeper, in an attempt to adapt this lock to fit a hooked breech's snail bolster, since this area of the lock plate supports the mainspring.
With care, you can build a highly tuned lock!
Click ADD TO CART, for same day shipment.
DRILL-5/64
drill bit, HSS, 5/64", .0781" diameter
DRILL-7/64
drill bit, HSS, 7/64", .1094" diameter
DRILL-9/64
drill bit, HSS, 9/64", .1406" diameter
DRILL-11/64
drill bit, HSS, 11/64", .1719" diameter
DRILL-15/64
drill bit, HSS, 15/64", .2344" diameter
DRILL-19
drill bit, HSS, Number 19, .1660" diameter
LOCK-SL-CK-L-HA
Hammer, percussion, left, 1.65" throw, wax cast steel, as cast
LOCK-SL-FK-BX
Bridle screw, .51" long, 8-32 thread, use two
LOCK-SL-FK-FL
Fly detent, wax cast steel, as cast, fits right, left, large, small Siler locks
LOCK-SL-FK-L-BR
Bridle, left, wax cast steel, as cast, drill in place
LOCK-SL-FK-L-MS
Mainspring, left, wax cast steel, tempered
LOCK-SL-FK-L-SE
Sear, left, wax cast steel, as cast, temper after fitting
LOCK-SL-FK-L-SS
Sear spring, left, die formed steel, tempered, use 8-32 screw
LOCK-SL-FK-L-TU
Tumbler, left, wax cast steel, cut for fly, as cast
LOCK-SL-FK-SSX
Sear spring screw, .53" length, 8-32 thread
LOCK-SL-FK-SX
Sear screw, .71" length, 8-32 thread
LOCK-SL-FK-TX
Tumbler screw, .50" head diameter, 8-32 thread
LOCK-SM-CK-L-PL
plate, left, wax cast steel, 4.7" x .97", as cast
TAP-8-32-B
Tap, 8-32 thread, high carbon steel, bottom tap, to finish a blind hole
TAP-8-32-P
Tap, 8-32 thread, high carbon steel, plug tap, to start a blind or through hole
TAP-8-32-T
Tap, high carbon steel, 8-32 thread, taper tap
TOOL-VISE
Mainspring Vise,
to safely compress a mainspring
TOOL-VISE-DX
Mainspring Vise,
deluxe English style,
for safely compressing a mainspring,
made in the U.S.A.
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Last updated: 4/25/2012 (95 KB)