Do You Add a BCM Extractor Spring?

[26 Inf]

My action spring is 10 3/8 inches long. Again, I looked at the buffer for markings and found none. It has a white plastic type tip at the far end pointing towards me as I shoot but other than that I don't know how to describe it. I do not have 5000 rounds but I do have 2000 rounds on this rifle or more. If I replace the spring first, any recommendations as to brand/type?

BCM uses the stronger spring in their bolts. The BCM BCG is considered to have a good reputation. Another reason I am mentioning replacement is shooting steel rounds. I do not shoot steel but what if I have no other choice someday? I have read a stronger extractor spring helps in that situation.

It is very unlikely your extractor spring is causing you any problems, since you don't report fail to extracts.

The buffer spring is GTG.

If you are concerned about ejection simply get an H2 Buffer. Most rifles will run on the H2. Here are sources:

BCM: https://www.bravocompanyusa.com/H2-C...carbine-h2.htm $29.99

DSG: http://www.primaryarms.com/heavy-car...oz-dsghcarbf-h $21.99

PSA: http://palmettostatearmory.com/palme...vy-buffer.html $19.99

I've purchased from all the shops listed and haven't had any problems with shipping times, although some say they have experienced slow shipping from PSA.

Install an H2. to paraphrase the guy from Men's Warehouse, You're gonna love the way it shoots.

[Dr. Bullseye]

Thanks guys, I will do it. My local gun shop is a Primary Arms dealer and I have dealt with them before and like them so I will see if my gun shop can get this for me.

Thanks again!

[Iraqgunz]

You don't need to weigh it. Buffers are marked accordingly. A plain buffer with no markings is a standard carbine buffer and usually weighs about 2.0 oz. You need an H buffer at a minimum assuming it doesn't have a Stormy Daniels gas port.

OK, so looking at the Brownell's Catalog, a standard carbine buffer is 3 oz. From there upward is 3.5, 4.1 and 5.4 oz. I have no scale but Monday I can go to the local USPO and probably talk them into weighing my buffer (just to make sure). Then, if it is 3. oz, I should probably go up to 3.5, correct?

[Iraqgunz]

Pretty much.

If your buffer has no markings on it, it’s a standard carbine buffer. You should probably be using a H buffer. I would put in the H and stop worrying about ejection patterns.

[Dr. Bullseye]

I found two makers of individual tungsten weights and instructions on installing them. As Iraqgrunz says, I have a carbine buffer (unmarked) so one, possibly two weights (H1 or H2) are needed. If I do a DYI both can be tried. I also spent the day looking at buffer springs and the claims they make. People say the Sprinco red spring will improve the feel of recoil and improve follow up shots by keeping the rifle flatter after the first shot. They also say a heavier spring will increase the cycle time which may help my ejection pattern. They also claim their springs last much longer. They recommend the red spring and an H1 buffer. I may just do this. I will call them Monday and get their final recommendations.

[ggammell]

I found two makers of individual tungsten weights and instructions on installing them. As Iraqgrunz says, I have a carbine buffer (unmarked) so one, possibly two weights (H1 or H2) are needed. If I do a DYI both can be tried. I also spent the day looking at buffer springs and the claims they make. People say the Sprinco red spring will improve the feel of recoil and improve follow up shots by keeping the rifle flatter after the first shot. They also say a heavier spring will increase the cycle time which may help my ejection pattern. They also claim their springs last much longer. They recommend the red spring and an H1 buffer. I may just do this. I will call them Monday and get their final recommendations.

One thing at a time.

There are tons of guns running well with the standard style spring. While Springco is highly regarded it may not be necessary.

[26 Inf]

I found two makers of individual tungsten weights and instructions on installing them. As Iraqgrunz says, I have a carbine buffer (unmarked) so one, possibly two weights (H1 or H2) are needed. If I do a DYI both can be tried. I also spent the day looking at buffer springs and the claims they make. People say the Sprinco red spring will improve the feel of recoil and improve follow up shots by keeping the rifle flatter after the first shot. They also say a heavier spring will increase the cycle time which may help my ejection pattern. They also claim their springs last much longer. They recommend the red spring and an H1 buffer. I may just do this. I will call them Monday and get their final recommendations.

As ggammell said - buffer first.

I like the idea that you are going to upgrade your buffers, I was hesitant to recommend that, as I didn't know your inclination.

Have you checked with these guys for parts? https://www.kakindustry.com/ar-15-pa...ubes-and-parts

Unless there is a special secret sauce tungsten or steel used in weights their prices seem pretty competitive. I've put together several R-7 buffers buffers using their pieces. No problems.

[Dr. Bullseye]

I will do buffer first, ggammell. I did find that company 26Inf. and I also found these guys

https://dlaskarms.com/products/tungs...-buffer-weight

[26 Inf]

I will do buffer first, ggammell. I did find that company 26Inf. and I also found these guys

https://dlaskarms.com/products/tungs...-buffer-weight

Yes, that is why I made the tongue-in-cheek remark about 'secret sauce tungsten' the KAK tungsten weight is $7.50. They also ship pretty quickly.

[Dr. Bullseye]

Yes, that is why I made the tongue-in-cheek remark about 'secret sauce tungsten' the KAK tungsten weight is $7.50. They also ship pretty quickly.

KAK is half the price of the other company so if you say they are good, I'll order from them, thanks.