Modern Sporter - Build Discussions

zKn0xvillex said:
Hey guys, sorry if some of this is already discussed it's hard to find things in the 200 pages here.

My other issue i'm having is that the rod for the dust cover is too long and pokes out to where the threads are for the barrel. It is from TNA

Any help is appreciated thanks
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The dust cover rod issue is common. Just trim it down until it’s flush or go with a “rod less” quick insert style.
 
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zKn0xvillex said:
Hey guys, sorry if some of this is already discussed it's hard to find things in the 200 pages here.

I am having a hard time with the roll pins for the forward assist and bolt catch. I ended up breaking the bolt catch roll pin so i am ordering a new one but having a lot of trouble. They are from a Geissele LPK and i made sure to put oil before putting them in.

My other issue i'm having is that the rod for the dust cover is too long and pokes out to where the threads are for the barrel. It is from TNA

Any help is appreciated thanks
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While there is a lot of great advice there, I would also advise before proceeding further, put the forward assist in, then put the largest diameter punch through the hole to ensure you have a clear path for the roll pin. You should never have to FORCE parts in, and it's always best to proceed with a little care and caution. If there is any obstruction, contact us by email info@albertatacticalrifle.com and we'll get you taken care of. If you are local in town, just stop by and we can check it out for you.
 
Someone is missing a barrel and a couple receivers... Round three shipping can’t come fast enough!!!!

And if anyone can point me to a finger groove style grip in stealth grey would be nice!

Undecided on the trigger for the 22lr build too. Waiting for mags from brownells.


google sites image gallery
 
Looking for insight. I am on the lookout for an 18.6 5.56/223 Wilde barrel that is light/medium profile for one upper and a bcg to go with.

Also looking for information on where to obtain a barrel in 450 Bushmaster. Atrs doesn’t have a lead on any at the moment.

I am looking to make these both as accurate as possible while not being terribly heavy. Can anyone share their success story setups that have worked well for them in both the weight and accuracy department. Thanks.
 
I used a faxon Gunner 18.6” in .223 Wylde, haven’t had a chance to get past 100 yards with it yet, but I put 10 rounds of xm855 in a group about 1.1”, I would call that pretty accurate for a light weight barrel with surplus ammo
 
Canadian-Sniper said:
Looking for insight. I am on the lookout for an 18.6 5.56/223 Wilde barrel that is light/medium profile for one upper and a bcg to go with.

I am looking to make these both as accurate as possible while not being terribly heavy. Can anyone share their success story setups that have worked well for them in both the weight and accuracy department. Thanks.
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I'm a big fan of the Faxon Gunner barrel and just the Gunner profile in general. It's light weight but has more meat near the breach end where it's needed and its pencil profile from the gas block out where IMO it's not needed.

I had a Faxon 18" gunner that shot 0.6-0.75 MOA at 200yds with 77gr smk's and around 1 MOA with Hornady 55gr bulk.

I had a lilja profiled to match a 18" gunner but built to 18.6"(this was before Faxon offered a 18.6" option). It shot 77gr SMK's at 0.5 MOA consistently and shot Hornady 55gr frontier at 0.75-0.8 MOA consistently.

Just built a 18.6" Faxon Gunner, haven't shot groups with it yet but when I was zeroing with 77gr SMK it was stacking them into what looked like similar performance as my past experience.

I've bore scoped the Faxon barrels and they look and perform above their price range in my experince.


ThatM305Guy said:
Has anyone tried bedding the upper receiver lug? Or do the new uppers fit pretty well?
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Buddy of mine from Canmore has a first run slick side set that was kinda sloppy, had the rear lug on the upper bedded to the lower/pin. It has no play at all now, see how it holds up.

He also just built on a recent forward assist set and it has ZERO play at all, like none, it's perfect. So it would seem they have this sorted out or at least in my experience.
 
JayCarver said:
I'm a big fan of the Faxon Gunner barrel and just the Gunner profile in general. It's light weight but has more meat near the breach end where it's needed and its pencil profile from the gas block out where IMO it's not needed.

I had a Faxon 18" gunner that shot 0.6-0.75 MOA at 200yds with 77gr smk's and around 1 MOA with Hornady 55gr bulk.

I had a lilja profiled to match a 18" gunner but built to 18.6"(this was before Faxon offered a 18.6" option). It shot 77gr SMK's at 0.5 MOA consistently and shot Hornady 55gr frontier at 0.75-0.8 MOA consistently.

Just built a 18.6" Faxon Gunner, haven't shot groups with it yet but when I was zeroing with 77gr SMK it was stacking them into what looked like similar performance as my past experience.

I've bore scoped the Faxon barrels and they look and perform above their price range in my experince.




Buddy of mine from Canmore has a first run slick side set that was kinda sloppy, had the rear lug on the upper bedded to the lower/pin. It has no play at all now, see how it holds up.

He also just built on a recent forward assist set and it has ZERO play at all, like none, it's perfect. So it would seem they have this sorted out or at least in my experience.
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Thanks for sharing.
 
JayCarver said:
Buddy of mine from Canmore has a first run slick side set that was kinda sloppy, had the rear lug on the upper bedded to the lower/pin. It has no play at all now, see how it holds up.

He also just built on a recent forward assist set and it has ZERO play at all, like none, it's perfect. So it would seem they have this sorted out or at least in my experience.
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Good to hear....any recommendations for bedding compound? JB weld?
 
Folks I can not get my rifle to cycle the next round or catch the bolt on the last round. Gas block has been installed using the TNA dimpling jig and I have adjusted both the gas block and buffer through all increments. I'm wondering if the length of the carbine buffer system is the issue and I may need a rifle length system. When I charge the bolt it travels past the bolt catch about 3/16 - 1/4". I also have an upper in 6.5 Grendel which cycles but does not hold open (I did switch parts between uppers with the same results.) Any ideas? My parts are as follows:

MRA Match Stainless Barrels 18.6" in .223, (6.5 is 20")
Superlative Arms, Adjustable Bleed-Off Gas Block,
Strike Industries Enhanced Receiver Extension,
Strike Industries Optimus Modular Weight Buffer,
Strike Industries, Flat Wire Carbine Spring,
Brownells M16 5.56 lightweight BCG,
Hiperfire EDT Designated Marksman trigger
rifle length gas system?
 
bukwild said:
Folks I can not get my rifle to cycle the next round or catch the bolt on the last round. Gas block has been installed using the TNA dimpling jig and I have adjusted both the gas block and buffer through all increments. I'm wondering if the length of the carbine buffer system is the issue and I may need a rifle length system. When I charge the bolt it travels past the bolt catch about 3/16 - 1/4". I also have an upper in 6.5 Grendel which cycles but does not hold open (I did switch parts between uppers with the same results.) Any ideas? My parts are as follows:

MRA Match Stainless Barrels 18.6" in .223, (6.5 is 20")
Superlative Arms, Adjustable Bleed-Off Gas Block,
Strike Industries Enhanced Receiver Extension,
Strike Industries Optimus Modular Weight Buffer,
Strike Industries, Flat Wire Carbine Spring,
Brownells M16 5.56 lightweight BCG,
Hiperfire EDT Designated Marksman trigger
rifle length gas system?
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I would double check you put the AR-15 version of flat wire spring in.
 
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