The HK13E is a modified HK23E, with a different bolt group and with a box magazine adapter. It can use standard HK33 series magazines or M16 magazines with an adapter.

H&K21E

HVY +1 N P 6D6+2 (7.62N) Belt 25 ST 400m

The HK21E was a general purpose light machine gun (GPLMG) used by some european armies. It came with a quick change barrel and heavy bipod, and used metallic non-disintegrating DM1 belts, or it could be ordered with a feed mechanism to allow it to use M60/DM6 standard disintegrating metallic link belts.

H&K23E

HVY +1 N C 5D6 (5.56N) Belt 25 ST 400m

The HK23E was designed as a squad automatic weapon, firing 5.56N ammo from the same disintegrating metallic link belts used by the M249 system. Weighing in at 19.18 pounds with the bipod, the weapon is over 40 inches long with a fixed stock.

H&K BARR-4: 780eb
MG +1 N C 5D6 (5.56mm caseless) 75+75 1/4/40 ST
Ths foor barrelled dual fed machinegun is more overkill than can be believed. If you don't have the strength to carry and fire a minigun, but want to put as many holes into something as possible then this is the weapon for you. The 4 barrels are on left and right opposite rotation, this means that the upper right and lower left barrells fire simultaneously, then the upper left and lower right. The weapon was designed this way to prevent overstressing the barrels while still maintaining a maximum rate of fire.

M249 Booster Edition: 900eb

HVY -2 L P 5D6 (5.56N) belt 30 ST

This is the police nickname for a weapon that has become frighteningly available in certain metroplexes for no apparent reason. It seems that someone came accross a large number of old M249 Squad Automatics pre-dating the US Military's switch to caseless ammo. These belt-fed weapons have had their stock removed and barrel cut down to the minimum possible length. This allows Boosters to hide the weapon under their coat. A team-mate usually carries a bunch of ammo for it, but quite often the booster in question will also carry a nylon bag with 300 to 600 rounds of belted ammo in it. What makes the weapon so frightening is it's ability to lay down fire for minutes at a time without needing to reload.

M2A5HB Browning.50cal HMG: 2000eb