monmouth 19 Posted April 10, 2014 is "ape", "arm"? Propper LOP and comfortable LOP are to different things. Propper sounds relative to whatever works best with your body mechanics. I prefer to be as compact as possible, I just find it more comfortable. If I have to kick out my elbow more then so be it. My nose may be above the CH to align my eye with the scope, but its in line with it or close to it. I may be at R14 this weekend, Ill try and get a pic. Even with my 16" PredatAR and the MOE stock pinned one notch from fully closed when I am prone my nose is at the CH. I only ask due to the intended range of the rifle and a repeatable precise delivery. Quote Share this post Link to post Share on other sites
jrfly3006 42 Posted April 11, 2014 OK a little OT but you guys sound really versed in the AR building trade....My barrel should be here tomorrow followed shortly by the upper....Can I use Lubriplate on the barrel nut threads or do I really need that aero-shell grease I've heard a lot about? Quote Share this post Link to post Share on other sites
MidwestPX 172 Posted April 11, 2014 OK a little OT but you guys sound really versed in the AR building trade....My barrel should be here tomorrow followed shortly by the upper....Can I use Lubriplate on the barrel nut threads or do I really need that aero-shell grease I've heard a lot about? Any lithium lube will do. It's applied to prevent galling the aluminum threads when a steel barrel nut is installed. Quote Share this post Link to post Share on other sites
n4p226r 105 Posted April 11, 2014 are you ever in northern NJ? i have some aero-shell grease and just got in today a few containers to split it up into half oz sizes. Quote Share this post Link to post Share on other sites
jrfly3006 42 Posted April 11, 2014 Any lithium lube will do. It's applied to prevent galling the aluminum threads when a steel barrel nut is installed. Awesome Ty...thx are you ever in northern NJ? i have some aero-shell grease and just got in today a few containers to split it up into half oz sizes. Thank you very much for your offer..Im gonna roll with the Lubriplate..I have a can on hand already (keeps the Garand happy).. Quote Share this post Link to post Share on other sites
jrfly3006 42 Posted June 8, 2015 Also posted in AR Pics My attempt at a MK12 Mod 0 "inspired" SPR Took about a year of saving, acquiring and building since it was my first AR build I haven't stretched it out to 300 yards yet (max at CJRPC) but have put about 200 rds through for testing and she runs like a champ Specs: Spikes Punisher Lower BCM Upper BCM Mod 3 CH Rainier Arms BCG Rainier Arms 18" SPR profile stainless Match Barrel .223 Wylde Chamber ALG Single Chamber Brake YHM Gas Block with flip front sight YHM FF Semi Smooth forearm Magpul MOE Grip Midwest PX LPK Geissele G2S trigger Magpul Rear BUIS Midwest PX A1/A2 receiver extension CMMG A1 Stock Harris BRMS Bipod 6-9" ADM QD Bipod mount ADM Recon QD Scope Mount Leupold VX-R Firedot Patrol 3-9x Leupold Alumina flip caps BFG Sling attached with Magpul Paraclips, BFG A1 sling mount and Magpul RSA Quote Share this post Link to post Share on other sites
Rob0115 1,105 Posted June 8, 2015 [/url] SPR: Spikes Honey Badger lower Spikes upper Young NM BCG NiB Unique-AR handguard WOA .223 Wylde SPR barrel 18" Rainier Arms Compensator Magpul PRS GGG bipod Hiper Fire trigger Bad ASS safety Quote Share this post Link to post Share on other sites
sosa9999 5 Posted June 8, 2015 Spec Upper: Aero Precision Cerakote H-170 TitaniumBarrel: Lothar Walther Varmint Tactical 20” 1:8 twist chambered in .223 WyldeHandguard: Unique-AR Flames Cerakote H-170 TitaniumBCG: BCM Bolt Carrier GroupGas block: BCM Low Profile Gas BlockCharging handle: BCMGUNFIGHTER Charging HandleMuzzle device: Rainier Arms Compensator RACOptic: Nikon P223 4-12x40Bipod: Harris Engineering S-BRM 6-9” (not shown)UPK: PSA Lower: Aero Precision Cerakote H-170 TitaniumTrigger: Hiperfire Hipertouch 24CStock: Magpul PRSGrip: Magpul MOE-K2 (not shown)LPK: PSA Quote Share this post Link to post Share on other sites
Eric. 9 Posted June 11, 2015 I love SPR's. The MK12 might be my favorite AR configuration. Extremely versatile too, as someone mentioned. Mine is nore function over form. Specifically, I used a modern coating on the BCG and went with a more powerful optic. The original MK12's generally had 3-9x or 10x glass. MK12 Mod 1 (not an exact 1:1 clone) Bushmaster lower, BCM blem upper Geissele DMR 3lb - .5lb Robar NP3 treated BCG WOA SS .223 Wylde, M4 ramps, SPR profile barrel (has machined step for Ops Inc collar), 8 twist, mid length gas Surefire comp Quad rail, free float rail A2 buttstock Magpul buis Vortex Viper 6.5-20x optic, mil dot reticle RDS on 45 degree mount Harris Bipod Eric Quote Share this post Link to post Share on other sites
jrfly3006 42 Posted June 23, 2015 Also posted in AR Pics My attempt at a MK12 Mod 0 "inspired" SPR Took about a year of saving, acquiring and building since it was my first AR build I haven't stretched it out to 300 yards yet (max at CJRPC) but have put about 200 rds through for testing and she runs like a champ Specs: Spikes Punisher Lower BCM Upper BCM Mod 3 CH Rainier Arms BCG Rainier Arms 18" SPR profile stainless Match Barrel .223 Wylde Chamber ALG Single Chamber Brake YHM Gas Block with flip front sight YHM FF Semi Smooth forearm Magpul MOE Grip Midwest PX LPK Geissele G2S trigger Magpul Rear BUIS Midwest PX A1/A2 receiver extension CMMG A1 Stock Harris BRMS Bipod 6-9" ADM QD Bipod mount ADM Recon QD Scope Mount Leupold VX-R Firedot Patrol 3-9x Leupold Alumina flip caps BFG Sling attached with Magpul Paraclips, BFG A1 sling mount and Magpul RSA Got her out to CJ today ...8" target at 200 yards ( a few of those holes are from my buddies SPR)..very happy with the results of this build. Quote Share this post Link to post Share on other sites
Eric. 9 Posted June 23, 2015 Got her out to CJ today ...8" target at 200 yards ( a few of those holes are from my buddies SPR)..very happy with the results of this build.The grouping looks a lil loose for what you have into your gun (2 moa).What ammo are you using? Eric Quote Share this post Link to post Share on other sites
jrfly3006 42 Posted June 23, 2015 This was off a bipod ..some wooden bench..some prone...a bit gusty winds also..im confident if I get a good rest and take my time I'll tighen that up...was using 75 gr Hornady superformance match BTW... Quote Share this post Link to post Share on other sites
Eric. 9 Posted June 23, 2015 Gotcha. BTW, no lead sleds rests! Thats like using gutter bumpers when you bowl Eric Quote Share this post Link to post Share on other sites
10X 3,278 Posted June 23, 2015 Gotcha. BTW, no lead sleds rests! Thats like using gutter bumpers when you bowl Eric Yes, but so is using a bipod. Quote Share this post Link to post Share on other sites
MidwestPX 172 Posted June 24, 2015 Yes, but so is using a bipod. Bipods take a little more skill. In my experience, bipods on ARs are especially sensitive to consistent loading. Quote Share this post Link to post Share on other sites
Eric. 9 Posted June 24, 2015 Yes, but so is using a bipod. I think a lead sled is much more of a crutch than a bipod. With a bipod, you have to compensate for cant, have proper loading for stability and to minimize hop, as well as coordinate with your rear support. With a sled, once you have it locked down, you only need to worry abiut not jerking the trigger. Eric Quote Share this post Link to post Share on other sites
mcm308 0 Posted July 5, 2015 HCS Mk12 Mod 1. KAC lower. Quote Share this post Link to post Share on other sites
checko 180 Posted July 5, 2015 HCS Mk12 Mod 1. KAC lower. You like tan eh? Sent from my SM-G900V using Tapatalk Quote Share this post Link to post Share on other sites
mcm308 0 Posted July 6, 2015 You like tan eh? Sent from my SM-G900V using Tapatalk Yep yep, Quote Share this post Link to post Share on other sites
Eric. 9 Posted July 6, 2015 HCS Mk12 Mod 1. KAC lower. Nice. It looks like you have the Ops Inc collar. Do you have the suppressor or are you in New Jerkey? Eric Quote Share this post Link to post Share on other sites
mcm308 0 Posted July 6, 2015 Nice. It looks like you have the Ops Inc collar. Do you have the suppressor or are you in New Jerkey? Eric I am in New Jerky. I like that one..lol Quote Share this post Link to post Share on other sites
T1Defense 17 Posted July 9, 2015 One we built for a customer a while back Quote Share this post Link to post Share on other sites
Alex V 99 Posted July 12, 2015 I am in New Jerky. I like that one..lol I thought the OPS brake was a no go because it has threads for a supressor on it? Did u somehow perm. attach the thread protector onto the brake? I wanted to get the OPS model 12 brake for my SPR and got scared off. Quote Share this post Link to post Share on other sites
jrfly3006 42 Posted July 12, 2015 I thought the OPS brake was a no go because it has threads for a supressor on it? Did u somehow perm. attach the thread protector onto the brake? I wanted to get the OPS model 12 brake for my SPR and got scared off. The price of the OPS scared me off..lol Quote Share this post Link to post Share on other sites
Alex V 99 Posted July 12, 2015 The price of the OPS scared me off..lol $155 for a BattleComp or $199 for the Model 12. They are both expensive. Not much difference at that point. Quote Share this post Link to post Share on other sites
jrfly3006 42 Posted July 12, 2015 I went the ALG SCB route....$39.. Quote Share this post Link to post Share on other sites
mcm308 0 Posted July 14, 2015 I thought the OPS brake was a no go because it has threads for a supressor on it? Did u somehow perm. attach the thread protector onto the brake? I wanted to get the OPS model 12 brake for my SPR and got scared off. When I got the upper from High Caliber Sales, I had them pin and weld the brake and thread protector as one assembly. The Ops brake can be found for 150 I think. Check Adco Quote Share this post Link to post Share on other sites
Alex V 99 Posted July 14, 2015 When I got the upper from High Caliber Sales, I had them pin and weld the brake and thread protector as one assembly. The Ops brake can be found for 150 I think. Check Adco Nice! I have an A2 lower sitting all loanly. Might need a true SPR Mod 0 upper Quote Share this post Link to post Share on other sites