[mateba]

Any Marui GBB. Hi Capa 5.1 are quite amazing even in colder weather. I have fielded them in 40 degree weather without issue although depending on were you live you may have to wait till spring. I have also been interested in the new KJW GBBs due to Tonia Kobas influence, but they are definitely not made by him, so they are hit or miss from what I have read. Word of advice, CO2 mags generally destroy GBBs. Most full metal GBBs are made with pot metal and only offer a heavier recoil while sacrificing gas economy. I ran my Hi Capa on propane for three years without issue or upgrade. By far some of the best money spent of a replica.