Press/heat fit upper receivers?

[deephouse]

[deephouse]

Wait just found this on google

https://www.snipershide.com/shooting/threads/who-makes-thermal-fit-stripped-uppers.6999617/

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[DrewTheBrave]

As an alternative, you could use a barrel with a slightly oversized barrel extension, like from White Oak Armament, so that it will have a tight fit into a standard upper receiver.

Another option if you have a loose barrel to receiver fit is to shim & bed the barrel into the receiver to take up the "slop". Check part 12 of this guide for details: https://www.ar15.com/forums/precisio...fixed-/4-6919/

For what it's worth, I like the blemished BCM forged uppers for most of my standard or lightweight builds. However, if I'm going to use a long, heavy barrel, I'll prefer a stiffer billet receiver like Wilson Combat, VLTOR, BCM Mk2, or similar, and then bed it with Loctite 609 or 620.

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[deephouse]

As an alternative, you could use a barrel with a slightly oversized barrel extension, like from White Oak Armament, so that it will have a tight fit into a standard upper receiver.

Another option if you have a loose barrel to receiver fit is to shim & bed the barrel into the receiver to take up the "slop". Check part 12 of this guide for details: https://www.ar15.com/forums/precisio...fixed-/4-6919/

For what it's worth, I like the blemished BCM forged uppers for most of my standard or lightweight builds. However, if I'm going to use a long, heavy barrel, I'll prefer a stiffer billet receiver like Wilson Combat, VLTOR, BCM Mk2, or similar, and then bed it with Loctite 609 or 620.

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[comandante costello]

For what it's worth, I've recently paired a Ballastic Advantage Premium Black barrel with a VLTOR "polylithic" upper and the fit was extremely snug. I left the upper in the sun, put the barrel in the freezer, and with grease on the barrel extension hammered it home with a rubber mallet. Very pleased with the accuracy.

[Bruce3]

I recently put a LaRue Stealth barrel in a BCM upper. It slid right in, snug but not difficult at all to insert. I hear Noveske barrels fit the same way with BCM.

[deephouse]

I recently put a LaRue Stealth barrel in a BCM upper. It slid right in, snug but not difficult at all to insert. I hear Noveske barrels fit the same way with BCM.