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  1. Black extractor spring on a middy
  2. FSC556 on 14.5
  3. Pinned/welded FS??
  4. Do you think I have a heavy buffer?
  5. SureFire MB556K Opinions?
  6. LMT BCG in a RRA
  7. ? LMT SOPMOD and VLTOR E-MOD buffer tubes...
  8. Young Manufacturing Flash Hider Question
  9. Upper Suggestion
  10. Can you cut down a M4 config barrel to 11.5"?
  11. LMT piston upper question
  12. Rifle length VIS on middy with low-pro gas block
  13. 5.56 Ammo Chart
  14. Problem: Installing JP Safety Selector / KNS pins
  15. mil-spec buffer tubes
  16. Colt upper/lower fit
  17. Colt MT6400C pinned comp
  18. My Wife "Cleaned" My Workbench....
  19. Need help on quality forearm
  20. Colt M4 Barrels
  21. New to the site and I have some questions....
  22. Which woul you choose JP Tactical or Young NM Carrier and why??
  23. how long should buffer last?
  24. TiN bolt carrier wear
  25. swap BCG on two new uppers,,advice please
  26. 18" barrel gas port
  27. Grease for the Barrel Nut Threads
  28. A2 upper and F marked sight
  29. Colt MT6400C question
  30. anybody fire-lap their barrels??
  31. Bolt Carrier markings
  32. Am I overbuffered?
  33. Looking for a 14.5" w/perm attached FH?
  34. barrel help please
  35. LMT 10.5 buffer
  36. Question about Colt A2 uppers
  37. FSB?
  38. Opinions on stainless barrel
  39. 11.5 upper
  40. Is this a "solid" 0 - 400M Carbine, it's my first.
  41. Correct buffer for each gas system?
  42. Auto vs. Semi Trigger Groups
  43. Noveske BCG
  44. LMT 16" & DD 7.0 lite rail. Will it work?
  45. receiver extension/ stock question
  46. Charging Handles
  47. Best tool for castle nut staking
  48. As good as? Really?
  49. POF RAIL
  50. Best length gas system for 18" barrel?
  51. Tip On Shortening a VCAS...
  52. Noveske Middy Suppressors
  53. Changing apertures on Larue fixed BUIS
  54. Gas tube and barrel-nut notch alignment
  55. Recommendations on lower parts kit
  56. Quick Question LaRue Sling Swivel
  57. Ejection direction
  58. Folding BUIS for Armalite M15 gas block?
  59. sling swivel placement?
  60. Wtf - lower pin slid out
  61. Colt 6400c muzzel compensator
  62. steel charging handles?
  63. Barrel nut damage?
  64. Pinning an unpinned barrel "safety issues"
  65. Removing M4 stock
  66. tightning LT-129 mount
  67. S&W rifle internals question
  68. Alignment?
  69. Trigger/hammer mixing?
  70. Stongest AR stock???
  71. Adams Arms Piston Conversions?
  72. Weight differences?
  73. Vltor VST ?
  74. Proper Technical Definition of short stroking
  75. Installing / Removing gas rings
  76. Extractor Spring insert question...
  77. Noob question
  78. Is this normal wear on a cam pin?
  79. 6920 buffer tube
  80. Bipod length
  81. UBR Installation- Help Please
  82. Buffer selection
  83. Removing the castle nut
  84. Specific question about the N4 Light Recce Basic 16" Upper
  85. Off Center Receiver Extension?
  86. Who is best making a 14.5 barrel to 16.0?
  87. New Build - Upper and Lower Fit Problem
  88. Vltor CASV-M vs. other options
  89. M4 Barrel Contour
  90. What exactly is an SAS lower rail for a KAC RAS/RIS?
  91. Chargin handle Q&A
  92. Can anyone help me with the KX3 dimensions?
  93. How to remove a rusted Front Sight Post?
  94. swap: carbine stock ---> a1 rifle stock
  95. 6.8 buffer
  96. New grip making selector hard to turn?
  97. Bolt Internals in a Middy
  98. Double staked castle nuts
  99. So what does Mil-Spec mean???
  100. Newbee Questions
  101. o ring question
  102. Middys and Buffers
  103. What brand Uppers can I use??
  104. Bolt carrier marking
  105. Assembly issue, trigger sits too high?
  106. Question about Receiver extension torque
  107. Chrome peril
  108. G&R LPK: Smooth ... very smooth.
  109. MI MCTAR 20 FF RAIL?
  110. Charging Handle Problem
  111. Mod the lower or the PMags?
  112. Bushmaster barrel
  113. Carbine Weight
  114. LMT versus CMT carrier/bolt?
  115. Daniel Defense A4 Upper Receiver?
  116. CMT Lower
  117. Grant thread for his Lower specials
  118. I want a Noveske 14.5" Afghan!!
  119. AR Outer surface protection
  120. LMT and Colt Bolt Carrier Group
  121. ceramic coating for durability/reliability?
  122. hammer pin rotating
  123. bushmaster carbon fiber stripped uppers - caveat
  124. Dave Laucks AR/1911 Page..
  125. Replacement Roll Pins
  126. Aluminum vs poly rails
  127. Anyone ever used these lowers?
  128. Zeroing Problem. seriously.
  129. Is my Mega lower bent or am I retarded?
  130. What to change?
  131. Flexible cable rods
  132. POF handguard? Anyone have experience with them?
  133. What Does the "Reinforced Lower" Look Like?
  134. Reducing barrel weight
  135. case ejection direction, what does it tell me?
  136. 6721 H-BAR More Accurate Than the 6920?
  137. Where to buy Mil-Spec tube
  138. Anyone have experience with DD M4A1 RISII?
  139. double fired??
  140. Coatins on parts
  141. Replacing front sight
  142. GG&G flip sight/gasblock
  143. Permanently attaching a muzzle device???
  144. Anybody know the actual chamber size of my RRA LAR15
  145. Which gas block type ?
  146. Best quality 5.56 AR mags?
  147. Looking for a toolbbox?
  148. AR compatible cleaning stand?
  149. Residue buildup under flash hider
  150. Upgrade of the CAV-15
  151. VLTOR CASV-M sight and optic suggestions
  152. FTE Problems- What'd I Do?
  153. Can someone identify the barrel for me please?
  154. VLTOR MUR
  155. HK maritime mags
  156. Buffer and Spring
  157. AR-10 Bolt ejector tool
  158. LMT FSB markings?
  159. KNS pushbutton quick take-down pins
  160. ambi.
  161. dr. optic + mark4
  162. Best gas system for a 18" barrel?
  163. Old carrier, new bolt, new upper?
  164. OAL issues
  165. Help with trigger guard removal
  166. Need help with Colt FCG installation
  167. Sporter II and SP1 carbine upper issue
  168. M&P 15A problem?
  169. Tactical Innovations TAC15 Lower
  170. crush washer
  171. BCG ? Need Help!
  172. What are the causes of a double feed
  173. Lowers..
  174. SUN DEVIL and G&R LPK
  175. 55gr From a 1-in-12" bbl = Better Terminal Effect?
  176. Which buffer and bolt carrier to use
  177. Sooper barrels
  178. Looking for 1/7, 16 inch, chrome lined, mid length barrel
  179. Mil-spec chamber brushes, who uses them?
  180. Cut-down barrels and barrel performance?
  181. Fix for stripped threads...?
  182. weight of plastic handguards?
  183. Help identifying FCG manufacturer....
  184. Opinions on my build?
  185. Need Help with Noveske taper pin
  186. Barrel longevity as a function of gas system design
  187. Question on twist in the Barrel
  188. F-Marked FSB ?
  189. questions from a new carbine builder
  190. Getting popped primers in new barrel
  191. Enidine Recoil Buffer
  192. Trigger Replacement
  193. AR mag rebuild kits
  194. DD Lite vs. DD MK RIS II Rail: what's the difference?
  195. Anyone used the JP tensioning pin??
  196. BCG Question
  197. Weight difference between MUR + rail and VIS-1
  198. daniel Dfense Light Rail Question
  199. Set screw gas block for hard use?
  200. Gunsmithing for FreeFloat
  201. Help with modifying an Omega
  202. So how does this work?
  203. Noveske N4 Basic Arrived!
  204. Any drawbacks to mounting a light on the FSB?
  205. Which upper/lower combo?
  206. Getting ready to trouble shoot a Colt M4
  207. DD M4A1 FSP RIS II rail
  208. Is a 14.5" Carbine Upper 16" OAL?
  209. Bolt Marked "MPF"
  210. How does bush perm flash?
  211. Issue running this set-up?
  212. Consequences of out of spec lower??
  213. 14.5" middy??
  214. Larue BUIS...mil-spec height?
  215. Question regarding action spring quality
  216. If not BCM BCG then who?
  217. Front sight BURIED to zero it...
  218. swapping BCG in new N4...headspace check?
  219. MagPul followers=C-Prod Followers?? Pics added10/15
  220. Noveske Switch Block's are out!
  221. Barrel / patch plug help
  222. What's wrong?
  223. Lower parts change question
  224. Too cold for SS barrels?
  225. Charles Daly FSB mark
  226. bushmaster upper help!
  227. Geissele DMR Trigger?
  228. Possible to remove muzzle device without vise?
  229. Swap out a barrel
  230. Best sub-$200 trigger?
  231. BCM
  232. Brownells video series on how to build an AR-15
  233. Trigger Pins
  234. Comparison of AR stripped/complete lowers
  235. 1/7 twist barrel shooting 55gr
  236. Red Dot for an AR
  237. Question for users of the Geissele DMR Rifle Trigger
  238. Vlitor Flash hider/Brake combo
  239. KAC SR15 IWS E3 AND All Other Midlength URX Owners...
  240. Buffer for 6.8 and 5.56 Uppers
  241. broken mrp barrel bolt
  242. Source for Quality LPK
  243. Reliability break-in
  244. Has anyone triedthe KAC ambi magazine release?
  245. Has anyone used the KAC 600m sight for long-range shooting?
  246. DD RIS/ RIS II Rails....
  247. Question re: sight elevation adjustment
  248. LMT BCG markings
  249. Any concern with this key or its staking?
  250. Checking headspace -- chrome-lined 5.56