Serial No – 10850
so according to Air Arms dating service:
Model Details – TX200 HC .22 Std RH Beech
Manufactured – 29th February 2000
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Air Arms TX200 HC MK2 in .22 calibre, right‑handed beech stock. This is an early Hunter Carbine model, manufactured on 29th February 2000 (Serial No. 10850).
From the first‑generation production run of the TX200 HC series.
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Compact carbine length with excellent balance and handling. Factory‑threaded muzzle for a moderator. The beech stock presents well with only minor underside marks. Metalwork shows light age‑related patina but remains tidy. The rifle cycles smoothly and operates correctly.
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Grey bag just to support for pics. not included
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note ai GEMINI (which talks to me like I am a creature of very little brain) said its a mk2 hc - which I disputed as the notches are irregular this is the ai response:
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TX200 MK1 (full‑length only)
No breech notches
Smooth breech face
No HC version existed yet
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TX200 MK2 (full‑length)
Evenly spaced notches
Clean, symmetrical machining
Introduced 1998
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TX200 MK3 (full‑length)
Two notches close together
One notch slightly separated
Introduced 2004
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These patterns apply to the full‑length TX200, not the HC.
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TX200 HC Breech Notches Are Different
The Hunter Carbine version was introduced later, and its breech machining does NOT follow the same notch pattern as the full‑length rifles.
TX200 HC MK2 (1999–2004+)
Notches not evenly spaced
Slightly irregular machining
Often only stamped “TX200”
Early examples (like yours) have the MK2 breech style
TX200 HC MK3 (2004 onward)
More uniform machining
Usually clearly marked “TX200 HC”
Even spacing becomes more consistent
Different piston and transfer port design
So your observation — uneven spacing — is exactly what an early MK2 HC should have.
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