First, I'm not bashing Sig USA at all and happy that they did give us the 551A1 lower receiver!!

I know that this is a little on the stupid side, but would it be possible to cosmetically correct a milled "US" alloy Sig 551A1 lower receiver to closely mimic an original Swiss-made, stamped steel Sig 551/552 lower receiver?? I know that I can find a real Sig 551/2 stamped lower receiver for around $1,500.00, but I'm hoping for something more reasonable and within my budget.

I'm not holding my breath on an U.S. made version to hit the market since that project has been in the air since 2006/2007. I also do not see Sig USA releasing a true Sig 551 lower receiver to the American civilian market either at this point.

I know that areas on a milled US Sig 551A1 would need to be filled-in and reshaped to look like its stamped steel version, as well as swapping out the trigger guard assembly. I also know that a re-shaped Sig 551A1 receiver would still weight more than a stamped steel one and I'm fine with that issue... I just want my Sig 556 rifle to look more like the original Sig 551 rifle without spending the $1,500.00 plus to make this happen... The money saved can go to more Sig magazines and ammo!!

On a side note, I'm also "thinking" of converting my (real) HK-93 rifle to look more like the HK-33, but in semi-auto only by installing an original HK-33 15" (?) barrel with a pinned flash suppressor to make it legal and adding a correct style lower rocking type magazine release assembly.

I'm pretty much done with purchasing rifles and I'm now wanting to focus on what I have and get them to where I want them to be... I'm 50 y/o and I figure I still have a good 15 years to enjoy shooting them before Father Time catches up with me... I'm not at all worried about their resell value since most will go to my kids.

Thanks for looking!!

the steel lower and alum lower doesn't have as much difference in weight as one would think.

these pics are not mine and are from the SIG 556 site

Donner_und_Blitzen, thanks for the photos showing the actual weights of each type of receiver. For some reason, I figured that the alloy would be slightly heavier since it appeared to be pretty well made.

Again, I simply like the looks of the original Sig551/552 lower receiver over the U.S. version. As for the new alloy version that they are using for the European market, I haven't seen one yet, but I'm pretty sure its a winner.

Thanks for all the replies!!