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  1. M

    BCM Receiver and Lapping

    I have a Wheeler lapping tool; lapped lots of BCM uppers, never had a need for a "special" reduced diameter. But I've never measured the diameter of the tool either..............................works fine on every upper of numerous makes, that I've used it on. MM Your comment made me go &...
  2. M

    BCM Receiver and Lapping

    I have a Wheeler lapping tool; lapped lots of BCM uppers, never had a need for a "special" reduced diameter tool. But I've never measured the diameter of the tool either..............................works fine on every upper of numerous makes, that I've used it on. MM
  3. M

    what is the hides opinion on ballistic advantage barrels

    And there it is................................ MM
  4. M

    MicroBest Chrome BCG - Pictures and Comparison

    You couldn't possibly be more wrong about the forms of wear and / or scuffing /galling of hard chrome, if you tried.................................... MM
  5. M

    Geissele Cut Rifled SPR Build and Barrel Evaluation. (Part 4 (Load Development 28MAY25) Update!!!

    Yes, it is on the warm side, especially if ambient temps get hot. I've used 8208 for quite a few years & have a good stock & I am 23.4-23.6 across numerous rifles. 24 gr is a bridge too far IMHO. MM
  6. M

    what is the hides opinion on ballistic advantage barrels

    Buying BA barrels is like playing Russian Roulette with a 6 gun with 4 of the chambers loaded. Maybe you win, maybe you don't, but the odds are against you. Personally, I'm 50/50 with them. But I was able to salvage the bad one by recrowning & chasing the muzzle threads to all a brake to...
  7. M

    Replacing the barrel on my Medium weight 14.5 inch run and gun upper

    Kinda depends on what you will accept for absolute accuracy & rounds life expectancy. Both Criterion (CORE) & FN make some very, very good, accurate chrome lined barrels today. MM
  8. M

    Best AR-15/M16 Bolt Carrier Group For The Money…Who Ya Got??

    Absolutely nothing wrong with a good mag phos BC as long as it's lubed.........................but the other coatings will run better dry or with less lube & are just plain far easier to clean if that matters to you, especially the bolt stem. KAC still uses mag phos on all their rifles as far...
  9. M

    Best AR-15/M16 Bolt Carrier Group For The Money…Who Ya Got??

    I think he's FOS, with a fair amount of conjecture, if not outright mis-information & he has plenty of company. MM
  10. M

    Best AR-15/M16 Bolt Carrier Group For The Money…Who Ya Got??

    That looks ass-backwards to me............... Coefficient of Friction (COF) is a major reason for coating BC's & in descending order of COF is DLC, PVD, NP3 (a form of NiB) Chrome, & lastly, manganese phosphate. So all else being equal (bore for gas rings, outside contact dimensions of the...
  11. M

    Best AR-15/M16 Bolt Carrier Group For The Money…Who Ya Got??

    Why do you think that one is better than this one, other than being $5 cheaper? MM AO Mag Phos BCG
  12. M

    Replacing the barrel on my Medium weight 14.5 inch run and gun upper

    Vltor uppers are nice, but of the several that I've used, none were are a snug fit on a variety of barrels, slip fit at best. So if you really like Vltor uppers, trueing the face & loctite is your friend. As for lightweight barrels that shoot well, Wilson Combat barrels shoot well above their...
  13. M

    Recommend me a muzzle device

    These brakes are amazing for the recoil reduction for the size, but they are loud. Either the Gen 2 or the Gen 4 are great, but prices have gone up. MM https://www.americanprecisionarms.com/collections/gen-4-self-timing-muzzle-brakes
  14. M

    Making magazines reliable? How? (AR-15)

    Lancer is great, Magpul Gen 3 are fine, Gen 2's are OK; change the follower & spring to Magpul; fixes most issues; file / stone off the inside edges of the lips never hurts. MM
  15. M

    Dmr/ precision ar type trigger

    Or it's too much reading on the Innanet......................... Just sayin' MM
  16. M

    Eotech vs Acog vs razor 1-6

    This ^^^. But the 10" is not an LR rifle, so I see no need for the magnifier in the 1st place other than for show. If I need more range than the Eotech is good for, then I want a different rifle altogether with an LPVO. YMMV MM
  17. M

    Best AR-15/M16 Bolt Carrier Group For The Money…Who Ya Got??

    RCA makes the nitrided BCG's for sure & at one time Noveske even mentioned that on their website. Not sure about the phosphated ones............but I doubt that RCA makes those as they offer no phos on any of their own line. MM
  18. M

    KAC vs Radian Model 1 vs JP enterprises ctr-02

    MOD 2's have an M-LOK rails; the LPR versions have Krieger barrels, same as previous LPR's but with a lighter contour. MM
  19. M

    KAC vs Radian Model 1 vs JP enterprises ctr-02

    The best of all worlds.............................. KAC LPR I have one of the earlier ones with a heavier profile barrel; this gun will do all that you need & then some, & it appears to be available & Kelley's is a very reliable source...........I've bought several guns from him. While the JP...
  20. M

    Does ANYONE have a source for this rail?

    CMT makes nice stuff & I really like their receivers, but that rail is like lots of others. Look at the Ion Lite series from SLR..............their rails are some of the very best & some of the best looking rails available. SLR Ion Lite 13.7" MM
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