testtest

5.7x28mm Upper for Saint?

J

JustanaberageJoe

Elite
Never ended up trading my Saint but still wanting a rifle in 5.7x28mm.

Anyone tried one of the various uppers on their Saint? Just curious which is the best to go with. Not familiar with any of them.
 
I have a psa in 5.7x28, but not on a saint. I'll state this, do a cmmg upper in conjunction with their mags. They use 556 mags converted for 5.7x28. You don't need the complete mag (depending if it's compatible), only the inner parts. I've had better luck with lower feeding than top loading.
 
I've used an AR57 upper on an AR lower for years and it runs fine, plus it uses the P/PS90 mags.

I modified an AR mag to collect the brass as it dumps out of the AR mag well.
 
Talyn said:
I've used an AR57 upper on an AR lower for years and it runs fine, plus it uses the P/PS90 mags.

I modified an AR mag to collect the brass as it dumps out of the AR mag well.
Click to expand...
Which brand upper?

I’m torn between getting an upper or just getting the Ruger LC carbine in 5.7
 
I have the Gen 1 (cheese grater = full pic rails around) upper which was made by the original AR57 company.

americanshootingjournal.com

Gun Review: The Fully Functional AR57

The AR57 Is An Excellent High-capacity Yet Affordable Alternative For Self-defense, Varmint Hunting.
americanshootingjournal.com americanshootingjournal.com

Now a new AR57 company has revised the design to a slimmer Gen 2.

smallarmsreview.com

The Second Generation AR57: Drop-in 5.7 Upper For Your AR - Small Arms Review

Introduced around 2010, the AR57 blowback upper receiver for the AR15 uses 50-shot P90 magazines and ejects spent casings down through the magazine well for ambidextrous operation. Operating by simple blowback, this upper is available in 6-inch pistol and 16-inch rifle versions.
smallarmsreview.com smallarmsreview.com

Both PSA and Classic Firearms sells the upper in 16" or 12" if you want to stamp it.

www.classicfirearms.com

AR57 16" Complete ULT M-LOK Upper Receiver 5.7x28 Caliber With BCG, Muzzle Brake, M-LOK Rails and 1-50 Round Mag, Drop In Ready

AR57 16" Complete ULT M-LOK Upper, AR57 Mfg, Factory new. Comes with a 16" lightweight barrel with M-LOK rails. This AR57 Upper Receiver Assembly converts any AR-15 lower to a rifle capable of shooting 5.7x28 ammunition. The unique upper design loads from the top and ejects downward through the...
www.classicfirearms.com www.classicfirearms.com

www.classicfirearms.com

AR57 12" Complete ULT M-LOK Upper Receiver 5.7x28 Caliber With BCG, Muzzle Brake, M-LOK Rails and 1-50 Round Mag, Drop In Ready

AR57 12" Complete ULT M-LOK Upper, AR57 Mfg, Factory new. Comes with a 12" lightweight barrel with M-LOK rails. This AR57 Upper Receiver Assembly converts any AR-15 lower to a pistol capable of shooting 5.7x28 ammunition. The unique upper design loads from the top and ejects downward through...
www.classicfirearms.com www.classicfirearms.com

 
You must log in or register to reply here.
Back
Top