Specna Hopup Arm - Original and Flat

thingiverse

The hop-up arm used in the Specna Arms Edge SA-E17 is an exact replica of the original part, but it's likely to be identical across all Specna replicas with rotary hopup chambers. Two versions are available: a direct copy of the original and one modified for R-hop compatibility. The latter features a sewn-off design. To prepare this piece for use, start by drilling out the hole using a 2.0mm drill bit. For added precision, lightly sand the area to achieve a smooth finish. When printing, it's essential to use ABS material. Other options like PET or PET-G are not recommended due to their tendency to bend under stress, while PLA is also unsuitable as it may melt in high temperatures.