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If you're unable to locate an item please contact us directly.

Please have the following information ready:

  1. Firearm Manufacturer
  2. Firearm Model and Serial Number
  3. Gauge or Caliber of Firearm
  4. Part Description
  5. Any other pertinent information

Then please call our Sales Department toll free at:

866-NUMRICH
(866-686-7424)

Outside U.S.A.:

845-679-2417

Office Hours:
Monday through Friday
8:00 a.m. to 4:30 p.m. EST

Underhammer (*)

Schematic Image

*Part Key 'NI' stands for 'Not Illustrated'.

Image Part Key Product # Description Price Add To Cart
Barrel Retaining Pin
1 211000 Barrel Retaining Pin $2.55 Buy Now
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2 211070 Breech Plug (3/4 x 16) $5.45 Sold Out
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2 211040 Breech Plug (5/8 x 18) $5.45 Sold Out
Buttplate, Crescent, Brass
3 211100 Buttplate, Crescent, Brass $11.25 Buy Now
Buttplate Screw
4 211120A Buttplate Screw $2.35 Buy Now
Flash Shield, Old Style
5 527620B Flash Shield, Old Style $4.35 Sold Out
Hammer
7 211160 Hammer $28.05 Sold Out
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9 211210 Hammer Spring / Trigger Guard $9.60 Sold Out
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10 522950K Nipple (1/4 x 32 Muzzleloading) $4.70 Sold Out
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11 211230A Ramrod, .36 Cal. $6.50 Sold Out
Ramrod Ferrule
12 211240 Ramrod Ferrule $2.35 Buy Now
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16 211270 Stock w/ Buttplate $62.95 Sold Out
Forend Pin (2 Req'd)
17B 211320A Forend Pin (2 Req'd) $2.35 Buy Now
Forend, Standard (1-1/8" Barrel Channel)
17 211310 Forend, Standard (1-1/8" Barrel Channel) $20.35 Buy Now
Forend, Standard (15/16" Barrel Channel)
17 211290 Forend, Standard (15/16" Barrel Channel) $20.35 Buy Now
Stock Screw
18 211330 Stock Screw $2.35 Buy Now
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19 211360 Trigger $22.40 Sold Out
Trigger Guard Retaining Screw
21 213140B Trigger Guard Retaining Screw $2.55 Buy Now
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NI 210980 Barrel Assembly (w/ Breech Plug) $96.45 Sold Out
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NI 1449840 Barrel, .44 Cal., 20", Octagon - Threaded for Breech Plug $54.95 Sold Out