re: Official AR-15 thread

Shoot me an email and I will check on Monday. I may have one laying around. Otherwise its going to be a couple weeks before they are back in. The industry is getting slammed right now.

Gotcha, I'll check on it tomorrow when I get to the shop and let you know.

Have been looking to replace my CTR stock and went with a BCM. Should receive it by the end of the week, will report back. It's about two ounces lighter and should provide a better cheek weld.

Honest question here. Looking at picking up a receiver tube kit. Looking at BCM and it is running around $100 for the kit. Looking at the same thing from sulzer is $30. What is the major difference beside price? First build so I don't really know here. I know BCM is known for great quality so is there really that much difference?

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Honest question here. Looking at picking up a receiver tube kit. Looking at BCM and it is running around $100 for the kit. Looking at the same thing from sulzer is $30. What is the major difference beside price? First build so I don't really know here. I know BCM is known for great quality so is there really that much difference?

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A lot of the cheaper buffer tube kits are made from 6061 instead of 7075. There are 3 types of buffer tubes out there. Commercial, which are 6061 with threads cut in them. Mil Spec which are 7075 T6 hammer extruded with rolled threads and a dry film lube on the inside. And the "Mil Spec Diameter" made from 6061 and usually do not have the dry film lube.

I would go with sulzers and put the extra 20 bucks towards a trigger personally.

The extensions are 7075-T6 and are true to MilSpec dimensions. Diameter averages around 1.147", which is within the spec 1.145"-1.150". They do not have a chrome silicon spring. The buffers are dead on 3.0oz, but are not user serviceable if you wanted to swap out the steel weights inside later down the road. I would say this is where they likely differ from the BCM extension kits (although they do not make those claims).

After those kits run out I am going to be switching them up to music wire springs (reduce the boing sound ARs are known for) and changing the buffer to one that is user serviceable. They will be more expensive, but still a lot less than BCM. BCM has a lot of brand recognition that allows them to charge a premium for their products.

I took one of the samples the manufacturer sent me and banged on it with a 16oz ball-peen hammer to see if it would dent or deform. I used the ball side so the point of impact was more focused. As you can see from the picture they did not dent. The result was mostly marring to the finish and on some of the really hard strikes maybe about a .003" gouge where the ball of the hammer hit. Stocks still slid fine up and down and buffer/spring movement was not affected.

Yessir, I swap barrels for $40 pending no specialized tools are necessary to disassemble, such as proprietary barrel nut wrenches, that I do not already have on hand.

What barrel are you getting?

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I'm thinking about a DD 6.8SPC barrel

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6.8 is a good cartridge. I feel bad for you having to pay those ammo prices though . Of course if you aren't shooting a couple thousand rounds a year it won't be too terrible.