GTA
General Discussion To Gateway To Airguns => China Gate => : June 19, 2006, 05:41:19 PM
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First I'd like to say Thank You to Bob Werner (Charlie da Tuna) for all of his contributions to the sport of air guns and all the help he has given me just with his extensive knowledge. I hope he has an enjoyable and stress free retirement...
now for my question: I am curious, what are the diferences between the B19 and B20 powerplant? is the spring the same? is the spring guide the same? is the piston the same? what are the differences?
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Not too sure about the power plants, but the B20 has the Reckord trigger which is much, much better than the stock B19 trigger.
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I have been thinking of getting either one and I read a review comparing them and it stated the B20 has more power and better trigger.
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There is quite a difference between the two. Robert is right (txairgunners). Other than the trigger on the B-20 which is far superior there is the following:
B20 = clone of Beeman R-9 -or- Weihrauch HW95 –or- RWS320
B18/19 = clone of GAMO 220/440/890 (Hunter series)
Spring Dimensions
B-18/19 Factory spring specs Top Hat Spring Guide
10 ½ - 11 inches long Total length 1.250 Spring Guide diameter-.507
.117 wire diameter Guide Dia. .555
.527 ID Hat Dia. .750
.764 OD Hat Depth .190
35-36 coils
Coil Bound 4.224
B-20 factory spring
.500 ID Piston ID .745 Shaft Dia. .387 Depth 4.650
.738 OD Piston OD ..956
.119 wire Spring Guide ID .408
11 ¾ length Spring Guide OD .478
40 coils Chamber ID .983
Does this help ya my friend????
Courtesy of.... Taa Daa jist kiddn'