Here's a look at the weapons the US is sending to Syrian rebels

The Syrian Civil War is continuing to grind on, with both Russia and the US-led West aiding various sides of the conflict.

Part of US support to various Syrian rebel groups includes sending arms and armaments through Turkey. 

And, according to IHS Jane's based on documents released by the US's Federal Business Opportunities website, the US passed an exceedingly large amount of munitions into Syria in December 2015.

Here is a sampling of what the US sent to the Syrian rebels. 

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7.62x39 mm

Total weight: 134,188 kg (295, 833 pounds)

The US sent close to 300,000 pounds of 7.62x39 mm ammunition to the Syrian rebels.

These rifle cartridges can be used for older models of the AK-47.

Source: IHS Jane's

7.62x54 mm

Total weight: 67,404 kg (148,600 pounds)

The 7.62x54 mm cartridge is an older variety of ammunition that was first created by the Russian Empire. It has since been adapted multiple times, and can be used in a variety of weapons. 

Most likely, based on the other items the US is sending to the Syrian rebels, the ammunition is intended to be used with the PK machine gun, which the US is also sending to the rebels.

Source: IHS Jane's

14.5×114mm

Total weight: 369,681 kg (815,007 pounds)

The 14.55 mm cartridge is a Soviet ammunition that is primarily used for heavy machine guns. The ammunition can also be used for anti-aircraft fire and for taking both armored and unarmored vehicles. 

Source: IHS Jane's