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View Full Version : AR Technical Discussion



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  1. m.i. standard aimpoint mount
  2. DDM4 Selector Question
  3. Adjusting Old style Troy front flip sight
  4. Question about Noveske seconds
  5. Chip McCormick Trigger Creep fix?
  6. BCM extractor springs
  7. Input needed on ambi selectors
  8. Anyone ever heard of a Noveske N3?
  9. RRA CAR A2 Inspection Report, 06/09
  10. red river
  11. LaRue Rail and Noveske Switchblock
  12. Noveske Rifleworks
  13. VFG question
  14. bolt Carrier and bolt?
  15. Buffer spring replacement ?
  16. GTS Denny's Bolt carrier group
  17. New Coating on Colt BCG?
  18. need an armorers opinion
  19. why can some 1/9's shoot 75's and 80's and not others?
  20. Colt big hole upper
  21. Recoil impulse question
  22. P-Mag Question
  23. Buy with rails or without?
  24. length definition
  25. Lancer Mags - Can anyone offer feedback on durability
  26. Ready Mag Question
  27. Question on Drilling Gas Port/Chopping bbl...
  28. Vltor MUR-1A
  29. Aligning DD low profile GB
  30. which lo pro gas block?
  31. Fix for stove pipes
  32. VLTOR/KAC Setscrew GB Source????
  33. LMT 10.5" short stroking?
  34. Noveske GB Taper Pins...
  35. Removing and replacing heat shields
  36. F marked FSB Height?
  37. Umc Ammo problems?
  38. Assembling bolt / dumb question
  39. BCG question
  40. Pinned flash hider moves
  41. Options for longer fore-end?
  42. barrel question
  43. DD vs. LaRue rotation potential
  44. Help me choose a buffer weight
  45. The LPK puzzle
  46. My new single shot upper
  47. DD Lite rail install advice needed.
  48. Magpul MIAD screw
  49. Extra Hole In Striped Lower
  50. A2 vs A3 Specification - Whats the difference
  51. RRA lower
  52. DDM4 Middy conversion
  53. a Dent in the FSB
  54. Muzzle Brakes?
  55. Bolt Carrier Carbon Removal
  56. Quick question on ARMS 40L-SP
  57. M&P15X Troy rail and XTM covers
  58. Stainless barrel life?
  59. Double Star M4
  60. Did I get hosed?
  61. differences in gas port sizes
  62. Pins come out right to left?
  63. Movement on gas tube?
  64. Upgrades
  65. MB indexing question.
  66. 55g vs 60g
  67. Sully stock - rubber pad?
  68. If I'm running a 22 conversion kit...
  69. Downsides of a Non-Shrouded Firing Pin?
  70. BCG diffs
  71. Quality 14.5" Midlength Barrel?
  72. Newbie question - Disconnector Spring
  73. Surefire FH556-212A flashider
  74. MOE Handguard install
  75. Gas Tube Alignment Tips
  76. What would cause this malfunction (doubling)?
  77. Removing pinned flash hider
  78. Safe distance from AR500 targets
  79. Running an AR15 FP in an M16 BCG, who's done it?
  80. Best Suppressed SBR Ever????
  81. FA vs SA carrier (yet again)
  82. Upgrade To FF or No?
  83. Fail Zero BCG
  84. Barrel compatibility?
  85. Rear Sight Problem Requires Solution/Fix
  86. Major Extraction Failures Today! (Updates About Gun & SW Customer Service)
  87. Match trigger question
  88. Installing Rifle Length URX Rail System on Midlength (Armalite Gas Systems)
  89. Removable carry handle question
  90. Front Sights: Bolt-On vs Pinned - Completed w/Pic
  91. How Long Will a Forged AR Lower Last?
  92. Compact ACOG mount heights?
  93. Dumb question
  94. Brownells flip up front sight on an Armalite
  95. Question for DD Omega owners..
  96. Trigger question. Surface or Through hardened
  97. Crane O-ring installation????
  98. Geissele SSA Trigger & Tac Sol AR22 Upper
  99. New Pmags
  100. Rifle vs. Mid vs. Carbine gas length
  101. Rust? around gas ring area
  102. Carbon on/around FSB?
  103. Grip/Saftey Spring
  104. Preferred general purpose rifle - barrel length & gas system
  105. Stamping on a Colt A1 barrel?
  106. Removing Rocksett Question...
  107. Handguard Nuts
  108. Superior Barrels' - "Hard Blue" Process
  109. LMT "enhanced" bcg
  110. How Heavy is this BCM Set-Up
  111. DDM4 BCG
  112. Problematic Stag Model 1 Range Report
  113. Ruger SR 556
  114. Best Rear BUIS on CAR
  115. Am I boned?
  116. Unknown Upper Needs Identification
  117. Piston Lube?
  118. Folding front sight??
  119. AAC Blackout (non-supp) timing question.
  120. Shortening AR barrel
  121. Rail advice for Colt 6920
  122. Difference in buffer tube size
  123. Full Auto Malfunction PITA
  124. DD Omega 7 question
  125. Egg out cause...
  126. Delta ring is loose, need assistance
  127. Is there a chart for barrel weights?
  128. DD AR15 Lite Rail screw rust
  129. Ejector/Extractor Marks on Brass - Gun or Ammo Problem?
  130. 1/7 vs. 1/9
  131. Barrel profiles, stiffness, and 'harmonics'
  132. Does anyone in the Cincinnati area have...
  133. "gas buster" charging handle for lefties?
  134. Removal of front sling mount
  135. what rail for my Noveske 14.5 upper?
  136. DD Omega Rail
  137. Rounded vs. notched hammer
  138. Bolt Cycling Issue
  139. Bushmaster Upper Receiver
  140. Comps/Brakes For MIL/LEO use
  141. Sabre Defence Handguard Cap Issue
  142. Help!
  143. Am I wrong about my Colt FCG pins?
  144. trigger issue. what's going on here?
  145. How to Lap Bolt Lugs
  146. Double Star lowers and PMags
  147. Headspace
  148. Full auto light primer hit problem - not so solved
  149. Troy Handguard Question
  150. Running SA & FA BCG in SAME RIFLE is it OK?
  151. Confused about ammo.
  152. Carbon Removal tip
  153. Vltor to Sundevil over
  154. BCM 11.5" Barrel Gas Block Installation
  155. ideas on a f/a issue?
  156. Vltor Casv-m
  157. Colt M4 (14.5") barrel gas port size?
  158. Mid Length Gas System handgaurd replacements
  159. Buffer tube install questions
  160. A couple flash hider/muzzle break questions....
  161. the dreaded barrel nut
  162. MK18 CQBR point of aim
  163. Colt lower issues.
  164. Which O ring for extractor?
  165. Front Side Mount Sling Swivel Installation
  166. Can a O ring insert cause malfunctions
  167. New coating for AR 15 mags for the comp shooter, pics
  168. action spring length?
  169. Is this an MIM Mag Catch on Colt
  170. Sighting In M4A1
  171. Headspace Question
  172. New TangoDown Mag Experience?
  173. Calling all AR armorers...
  174. Question re notched hammers
  175. Geissele Combat trigger
  176. Battle Rifle Recoil Reduction
  177. Detachable Front Iron Sight Help / LMT or Similar
  178. Sheared extractor
  179. Front Sight for Troy TRX
  180. Rock River Arms Lower Parts Kits
  181. PRI Fatboy
  182. The m4, DI, and piston----no this isn't your usual VS thread.
  183. Noveske Barrel Break-In (Stainless Steel)
  184. DD Omega Question
  185. Barrel Break In on a Chrome lined Carbine barrel
  186. low recoil 16 inch upper
  187. Extractor Tension / Issue?
  188. Safety selector problem ??
  189. Hammer and trigger pins connecter?
  190. Extractor issue?
  191. Finish/Paint question
  192. Possible issues due to rust...
  193. ambi safety install question
  194. new equipment questions
  195. Mag question
  196. Noveske N4 Light Carbine and Prvi Ammunition
  197. The MOACKS III - Necessity is the mother of inventiveness.
  198. Installing YHM Freefloat Handguard Questions
  199. question about Noveske N4 barrel steel
  200. Optimal SBR bbl length / gas system length for CQB work
  201. Bolt Corrosion
  202. McFarland Rings
  203. Piston driven 10.5/11.5" upper?
  204. Removing carrier key
  205. ARMS #50M-CV S.I.R. vs. TROY MRF-C
  206. Maintenance Schedule
  207. Brass ejection ... How far...????
  208. buffer weights again....
  209. A1 or A2 tube for ARFX stock
  210. 30MM rings for Aimpoint 9000SC 2X2 RDS
  211. Barrel-Mounted, Flip-up Front sights: Experiences & recommendations?
  212. M4 profile 14.5", fluted barrel. Who makes em?
  213. Taper pin gas block tool from Rainier
  214. MacFarland ar15 Gas Rings
  215. Vltor Emod Wiggle?
  216. Cold bore shot movement - how much is too much? Picture included.
  217. Need FH perm. installed.
  218. Attaching a tape switch to the hanguards
  219. FSB replacement question
  220. Noveske N4 Light Reece, Mil Spec or Commercial buffer tube?
  221. Buffer: Do I understand correctly?
  222. Lower Spring Kits
  223. Issue with Noveske Lower
  224. 6920 and DD lite rail
  225. Safety Selector Switch
  226. DD Omega 7
  227. .223/5.56 Marked Lowers...?
  228. BCM FA BCG MODIFIED w/ FAIL ZERO RANGE REPORT AWESOME
  229. Bolt gas key problem
  230. Anyone used YHM Picatinny Vise Jaws?
  231. thinking about get a ace stock for yhm carbine ?
  232. AFM barrel review
  233. Middy & buffer
  234. Staking job gone bad!
  235. Young Mfg Bolt Gas Key Staking
  236. M4 Barrel Mount Sling Swivel and harmonics/accuracy
  237. 20" to 14.5" buffer question
  238. Polygonal Barrels
  239. Couple questions about 1:8 twist barrels
  240. M&P 15 / Gas Block Alignment Issue
  241. Question on roll pins
  242. Which pistol grip for M4A3
  243. Recoil reduction for wifes rifle
  244. Staking tool
  245. Best 11.5" Barrel?
  246. Advice needed on problems with zero
  247. Trigger work
  248. Maximum effective range of various length uppers?
  249. Stove Pipes on AR (causes)
  250. Pinning/Welding flash hiders