T/C Drop-in Barrel Assembly,
.54 caliber, 1-66" twist, 15/16" octagon, 32" length,
blued, 5.2 lb, percussion, for Thompson Center Hawken Rifle.

Thompson Center drop-in barrel, .54 caliber with 1-66" twist for a patched round ball. 15/16" octagon by 32" length. Percussion ignition for Thompson Center Hawken rifles. The barrel, plug, adjustable rear sight, bead front sight, rib, rod pipes, and underlug are blued. Weight is 5.2 pounds. Fully assembled at the Green Mountain Barrel Company factory, this nice barrel assembly is new-in-the-box, unfired. Made in the USA, by Green Mountain Rifle Barrel Company.
An optional dark brown Delrin nylon ramrod is available at extra cost order #RAMROD-327-GMT. The Delrin nylon rod is may require the addition of a ramrod retaining spring mounted in place of the rear rib screw. Use spring #GMT-TC-RRS. Use ramrod retaining spring screw #SCREW-6-48-TC-RRS-X
- The 15/16" octagon size will fit Thompson Center Hawken rifles originally manufactured in .45 or .50 caliber.
- Right hand percussion only, the barrel length is 32" (or 33" including the plug).
- The adjustable rear sight is adjustable for both windage and elevation
- The blued steel front sight has a "gold" bead
- Our best stainless steel nipple for CCI No. 11 caps is fitted, #RST-S
- The 3/8" hickory ramrod is stained whiskey brown, 32-7/8" long, with T/C style 8-32 and 10-32 brass tips.
An optional dark brown Delrin nylon ramrod is available at extra cost order #RAMROD-327-GMT. The Delrin nylon rod is may require the addition of a ramrod retaining spring mounted in place of the rear rib screw. Use spring #GMT-TC-RRS. Use ramrod retaining spring screw #SCREW-6-48-TC-RRS-X
Track's best Black Powder BORE CLEAN Solvent, with flip-top spout
Ball puller, steel screw, .54 caliber brass collar, 10-32 thread
Bore brush, bronze, for .54 caliber, 10-32 thread
Jag, jagged cleaning tip, brass, .54 caliber, 3/8" rod, 10-32 thread
Wedge key, polished brass, for Thompson Center rifles
Ramrod retaining spring screw,
6-48 thread,
mounts spring to rib on Thompson Center rifles
Shooting patches, .010" cotton, .50 - .59 caliber, per 100, dry
Cleaning Patches, 2-1/2" diameter, bag of 100, pure cotton flannel, for .45 to .58 caliber
Ramrod for 32" Thompson Center drop-in barrel, by Green Mountain.
3/8" brown Delrin, 32-7/8" long.
Brass T/C style tips are threaded 10-32 and 8-32.
Made in the U.S.A.
Ramrod for 32" Thompson Center drop-in barrel, by Green Mountain.
3/8" stained hickory, 32-7/8" long.
Brass T/C style tips are threaded 10-32 and 8-32.
Made in the U.S.A.
Ramrod,
5/16" stainless, 36" long rod.
Creedmoor, rigid handle, 10-32 thread
Nipple, 1/4-28 thread, for standard rifle, #11 CCI cap, stainless steel
- Cone length 0.440"
- Overall length: 0.635"
- Thread journal length: 0.195"
- Diameter of base: 0.307"
Short Starter, patch & ball starter, 1/2" wooden rod for .54 and larger calibers.
Patch puller, corkscrew worm, steel, brass base, 10-32 thread
All sizes are nominal. Please verify with description for more information.
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Barrel Profile
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ReplacementThompson Center
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Brand of ManufacturerGreen Mountain Barrel Company
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Caliber.54 Caliber
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Length32"
LOCK-TC-RRS-X
Ramrod retaining spring screw,
6-48 thread,
mounts spring to rib on Thompson Center rifles
MINK-OIL
Trapper's MINK OIL TALLOW,
patch grease,
for match shooting & cold weather hunting,
one 8 oz. tin
OX-CLEAN-58C
Cleaning Patches, 2-1/2" diameter, bag of 100, pure cotton flannel, for .45 to .58 caliber
RAMROD-327-GMT
Ramrod for 32" Thompson Center drop-in barrel, by Green Mountain.
3/8" brown Delrin, 32-7/8" long.
Brass T/C style tips are threaded 10-32 and 8-32.
Made in the U.S.A.
RAMROD-327-GMT-H
Ramrod for 32" Thompson Center drop-in barrel, by Green Mountain.
3/8" stained hickory, 32-7/8" long.
Brass T/C style tips are threaded 10-32 and 8-32.
Made in the U.S.A.
RST-S
Nipple, 1/4-28 thread, for standard rifle, #11 CCI cap, stainless steel
Cone length 0.440"Overall length: 0.635" Thread journal length: 0.195" Diameter of base: 0.307"