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SuperHog · December 17th, 2014, 18:53

Remember the Tippmann M4 is a paintball gun with a hop up and a 6mm barrel versus a .68 cal barrel. Because it is a in-line blow back design, the bolt/hammer is in the rearward position under spring tension and held by a sear. Once the trigger is pulled, the bolt/hammer is released and the bolt moves forward along with a striker (hammer) to hit the valve open.

In a GBBR, striker hits a valve, and once the bb leaves the barrel, the extra gas forces the bolt backwards against the buffer tube, and forward again to chamber the next bb into the hop up. The GBBR design is more realistic in operation and kick.

Here is a in-line animation based on a Tippmann A5 very similar to the Tippmann 98.
https://ca.video.search.yahoo.com/vi...yfp-t-715&tt=b

The reason why the Tippmann kicks so hard, it is because of the >800psi operating pressure "forward kick". A GBBR achieves the "rearward kick" with >100psi. If you convert a GBBR to HPA, and bump up the pressure further, the kick would be even more realistic because it is rearward like in a RS.

All Tippmann had to do was to design their M4 with the in-line system reversed so the kick is "rearwards", but I guess paintball player getting into airsoft won't know the difference if the Tippmann M4 kicks "forward". https://www.facebook.com/video.php?v=935452886482948

December 17th, 2014, 18:53	#381
SuperHog Trader rating Join Date: Jul 2011 Location: Toronto, Ontario	Remember the Tippmann M4 is a paintball gun with a hop up and a 6mm barrel versus a .68 cal barrel. Because it is a in-line blow back design, the bolt/hammer is in the rearward position under spring tension and held by a sear. Once the trigger is pulled, the bolt/hammer is released and the bolt moves forward along with a striker (hammer) to hit the valve open. In a GBBR, striker hits a valve, and once the bb leaves the barrel, the extra gas forces the bolt backwards against the buffer tube, and forward again to chamber the next bb into the hop up. The GBBR design is more realistic in operation and kick. Here is a in-line animation based on a Tippmann A5 very similar to the Tippmann 98. https://ca.video.search.yahoo.com/vi...yfp-t-715&tt=b The reason why the Tippmann kicks so hard, it is because of the >800psi operating pressure "forward kick". A GBBR achieves the "rearward kick" with >100psi. If you convert a GBBR to HPA, and bump up the pressure further, the kick would be even more realistic because it is rearward like in a RS. All Tippmann had to do was to design their M4 with the in-line system reversed so the kick is "rearwards", but I guess paintball player getting into airsoft won't know the difference if the Tippmann M4 kicks "forward". https://www.facebook.com/video.php?v=935452886482948 Last edited by SuperHog; December 18th, 2014 at 09:06..