Firing rifle with printed lower

An AR 15 with lower receiver printed on my reprap.
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[KneecapSniper]

eh. not really. most of the weight is the barrel, bolt, and ammo.

[GoldenrodNews]

Is it lighter? Is there a noticeable difference in weight?

[KneecapSniper]

I printed the lower in two parts, and had to put both parts together.

[KneecapSniper]

The upper is the same as with a non-printed lower. The barrel, bolt, and upper receiver are all the same between lowers. The trigger pull is the same(because the trigger group is the same). I adjusted the grip angle a little bit, but I didn't have to. Comfort is pretty much the same. The scope was not touched when moving uppers between lowers.

[GoldenrodNews]

And where was more work needed?

[GoldenrodNews]

Is there any worry about precision? Accuracy? Maybe the bullet exits differently, than if shot from a regular AR-15? Any difference in the trigger pull, or does the shape feel different? Is it more comfortable for you to shoot a regular AR-15, than one with a ABS plastic printed lower receiver? Is it a different experience fitting this with other parts? Did it affect the scope at all?

[KneecapSniper]

It was more work to put together. but functionally there is very little difference.

[GoldenrodNews]

I see. So there's little difference between it and a regular gun?

[KneecapSniper]

I did a couple hundred with this .22LR upper, and about 150 with the 5.45x39 upper, because it was freezing out.

It shoots just like the machined lower that I bought did.

[GoldenrodNews]

How many shots has it been able to fire? Does it shoot well?