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Wiki says that it should weigh 5.35 lbs empty and be 32.5" with the stock extended and 29.8" with the stock retracted. By my calculations I think I will actually be
My first AR, Kaylee, I was an attempt to make something similar from easily available Title 1 parts, I even called it an XM177E3. Kaylee weighs 6.9 lbs empty and is 35.375" with the stock extended, 32.125" retracted.
Even with the moderator on the end the difference between 16" and 11.5" barrels makes itself felt. The E2 will only be an inch longer extended than the E3 is retracted!
Pic of the parts in their relative positions.
The miracle of Photoshop! Thanks Marv!
I would also like to point out that the 3rd gen stock on a mil-spec tube changed the lengths on the E3. Previously it was 36.5" extended and 32.75" retracted. The older style stock is also about 2 ounces lighter.
Dottie is 36" extended, 32.75" retracted and 6.8 lbs unloaded without optics and 7.5 lbs with optics.
In case you are curious about the loaded weights, the XM177E2 and XM177E3 are in 5.56x45mm and 30 round mags are 1 lb, 20 round are 0.7 lbs. The 25 round 6.8 magazines are 1.3 lbs and the 30 rounders are 1.7 lbs.
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