The Eemann Tech Main Springs Calibration Pack for 1911/2011 has been specially made for 1911 and 2011 pistols and their models.

It allows owners to choose the best suitable power of Main Spring for their firearms.

The pack includes a range of the most popular power Main Springs including 14,15,16,17 and 18 lbs.

Optimize Your 1911/2011 with Eemann Tech Main Springs

The Eemann Tech main springs calibration pack offers shooters a selection of competition main springs, allowing them to adjust the power of the main spring according to their individual needs. Made of steel with thermic treatment, these springs ensure the best performance and quality.

Each Eemann Tech main spring for 1911/2011 is uniquely colored for easy visual identification of its power value throughout its service life. The springs are partially painted with polymer and heat-treated paint, which remains flexible and does not damage or dye the handgun from the inside.

Each pack contains five competition-colored main springs:

• ET-111160 - 14lbs - Eemann Tech Competition Main Spring for 1911/2011 - BLUE color - 1 pc.
• ET-111161 - 15lbs - Eemann Tech Competition Main Spring for 1911/2011 - RED color - 1 pc.
• ET-111162 - 16lbs - Eemann Tech Competition Main Spring for 1911/2011 - GREEN color - 1 pc.
• ET-111163 - 17lbs - Eemann Tech Competition Main Spring for 1911/2011 - YELLOW color - 1 pc.
• ET-111164 - 18lbs - Eemann Tech Competition Main Spring for 1911/2011 - NO Color - 1 pc.