The Galil ACE is an assault rifle currently used by the Military Forces of Colombia and Military of Guatemala.

The Galil ACE rifle is gas operated, select-fire weapon. It uses long-stroke gas operated action with gas piston located above the barrel. Locking is achieved by rotating bolt with dual locking lugs. The receiver is machined from steel, with polymer magazine housing / pistol grip unit attached below. The detachable stamped steel receiver cover houses an integral Picatinny rail and rear sight base. The charging handle is located on the left side of the receiver and is attached directly to the bolt carrier. To provide maximum protection from dust and dirt at all times, the charging handle slot is covered with spring-loaded dust cover which opens and closes after each shot automatically. The safety / fire mode seelctor is duplicated at both sides of the weapon, and has better shape when compared to predecessors.

Since the deployment of the Galil in the Colombian armed forces as an assault rifle and standard issue rifle, there had always been the idea of creating another weapon with the Galil technology adapted to the specific needs of the Colombian army; in various studies it was demonstrated that the best option was to create another rifle with the technology available to replace and/or improve aspects of its predecessor, in this case those are:

An ace is a playing card. In the standard French deck, an ace has a single suit symbol (a heart, diamond, spade, or club) located in the middle of the card, sometimes large and decorated, especially in the case of the Ace of Spades. This embellishment on the Ace of Spades started when King James VI of Scotland and I of England required an insignia of the printing house to be printed on the Ace of Spades. This insignia was necessary for identifying the printing house and stamping it as having paid the new tax. Although this requirement was abolished in 1960, the tradition has been kept by many card makers.

The word "ace" comes from the Old French word 'as' (from Latin 'as') meaning 'a unit', from the name of a small Roman coin. It originally meant the side of dice with only one mark, before it was a term for a playing card. Since this was the lowest roll of the die, it traditionally meant 'bad luck' in Middle English, but as the ace is often the highest playing card, its meaning has since changed to mean 'high-quality, excellence'. This connotation has seen the word applied to an unreachable tennis serve, a successful fighter pilot and more generally as a person proficient in their field, especially a sporting field.