How to cache Roblox catalog gear?

I've wanted to do something similar before, the best approach I came up with was compiling a complete list of gear ids and putting them in a table so that i could spawn a random gear from that list. The list below is incomplete but just an example as to the setup. The script below would be used to give the player a random gear when they chat "r".

gears = {99797357, 99797381, 99797403, 99797327, 94794774, 99641902, 99610601, 99119158, 99119198, 97161241, 99254437, 99254358, 99119261, 99254241, 99119240, 83021197, 99254203, 99254164, 92142841, 87361662, 99130630, 99033296, 98411393, 98411436, 98970218, 98341183, 98253651, 98411325, 98253626, 98253592, 98346415, 13745494, 98253569, 98219158, 97932897, 97885552, 97885508, 97885572, 97885289, 97886188, 97756645, 97712291, 97311482, 97161262, 97161295, 96669943, 96669687}

function onMsg(msg, ply)
 if msg == "r" then
for i = 0,10 do
        local model = game:GetService("InsertService"):LoadAsset(gears[math.random(#gears)])
        for _,v in pairs(model:GetChildren()) do
                if v:IsA("Tool") or v:IsA("HopperBin") then
                    v.Parent = ply.Backpack
                end
            end
        end
    end
end

game.Players.PlayerAdded:connect(function(ply)
    ply.Chatted:connect(function(msg) onMsg(msg, ply) end)
end)

for _,ply in pairs(game.Players:GetPlayers()) do
    ply.Chatted:connect(function(msg) onMsg(msg, ply) end)
end