SSP18 already comes with an aluminium light weight BBU nowadays, with the polymer slide it's very competitive regarding gas efficiency, rof etc.
TM hicapa 5,1 is better bang for the buck compared to the gold match. gold match is quite a bit more expensive and slide will crack even with care, unless you upgrade the BBU.
If you plan to upgrade, TM Hicapa 5,1 is as upgradable as it gets for an airsoft gun, but it gets pricy real fast too. SSP5 is a bit too niche for a newbie that dunno much about GBB. If you don't plan to upgrade, SSP18 ootb will beat the TM 5,1 in longevity and accuracy, as it comes with an I-key and ML bucking.
TM hicapa 5,1 is better bang for the buck compared to the gold match. gold match is quite a bit more expensive and slide will crack even with care, unless you upgrade the BBU.
If you plan to upgrade, TM Hicapa 5,1 is as upgradable as it gets for an airsoft gun, but it gets pricy real fast too. SSP5 is a bit too niche for a newbie that dunno much about GBB. If you don't plan to upgrade, SSP18 ootb will beat the TM 5,1 in longevity and accuracy, as it comes with an I-key and ML bucking.