Turbotezza

You're good. Chambering a round should always meet with some resistance. Even when using a headspacing gauge, the instructions will always state the amount of pressure you need to put on the bolt while you do the checking.

I also think that you are now undergassed. I once had a gas key clog up on me and it caused the rifle to short stroke. I soaked and cleaned it up and presto! A fully functional rifle again.

Sent a PM

Nice.

I use car diff lube. Very filmy! ;D

All you need to do is to determine if your current buffer tube is commercial or mil spec and then buy the correct ACS to fit. You can use the same spring and buffer in either type of buffer tubes.

They were out of FDE at the time, si I went to CT instead. Pretty good match to Magoul's FDE.

MRF? Totally cool build! ;)

@Robocop - I got the Restor because I thougt it might tame the longer gas impulse the 18" barrel with the mid length gas system and I must say it works really well. I'd say it is worth a try. @6132Expert - Got it on eb ay

The rifle is brand spanking new and hasn't seen much use yet, so I can't say for sure if it is as durable as Hard coat or not. SI-Defense did the coating and it is done both inside and out. Extra $40 and 6 weeks longer wait time! LOL!

Firstly, thanks to all for the kind words. Good spot. They are sprayed with Coyote Tan Aluma Hyde.

SI-Defense billet matched set poweder coated FDE 18" Rainier Ultramatch barrel PWS FS030 muzzle brake Troy MRF forearm rail & stubby grip Std. DPMS BCG Gissele Super Dynamic trigger Endrine buffer Magpul ACS & MIAD Burris XTM scope on American Defense mounts BCM charging handle MI buffer tube sling adapter

I hope you get yours faster than I did. My FDE plated upper/lower set took them 10 weeks to deliver.

For those interested, the 16" and 18" barrels with the DPMS extensions are back in stock. Move fast! 8)

I'm not saying it can't be done, but AR barrels have the extension pinned to the barrel so it's probably be easier/cheaper just to buy a new one.