- Round vs. Diamond rear iron sight.
- KAC change out Buffer ?
- Stupid question about muzzle breaks
- Double feed from PMags
- Action springs and failures to eject
- Magpul MIAD install tips....
- Standard Midlength Gas w. KAC URX II Rifle Length
- (COLT MT6400) permanently installing muzzle brakes with tactical handguards
- Deleted
- Shot counters
- tilted FSB... How to correct?
- Why does my 14.5 middy play so rough?
- Any real difference between the PWS TTO & the PWS FSC556?
- Hammer Pin has started walking out!
- M4 extended feed ramp dimensions?
- M4 Feedramp on Colt 20"?
- JP/VTAC Modular Hand Guard with Carbine Extention
- Need help understanding BCG mechanics
- Delton Slam Fire?
- Why not nitrocarburize FCG parts?
- Trouble mating DD A4 Upper onto Colt lower
- cutting barrel and perming a fh
- ranger plates for colt 20 round straight mags
- Failure to feed - stumped!
- Weight diff? N4 VIS 12" vs LoPro 11"
- Has anyone else noticed
- The M4 cycle of function.
- Question re Vltor EMod A5 kit
- Several questions: trying to spec a 16" SPR-like upper
- Barrel Nut - What Have I Got Here
- Shooting so much it hurts the barrel.
- ar 15 jam nut stuck
- 20 round magazine size comparison
- Replacing Free Float
- Bore troubles?
- How long will a Colt M4/M4A1 barrel last? Links to test videos:
- Colt HBAR Elite, how to remove tube?
- Noveske intermediate gas w/ KAC URX rifle length?
- Teach me about Failure to Feed
- Can I shoot this gun?
- Operator Level + Inspections For The M16 FOW
- LMT STD 16 Handguard Options
- ARMS or WILSON sight towers PROS/CONS
- Newbie S&W extractor question
- Rounds keep getting jammed in the feed ramps
- Questions: Noveske barrels and velocities.
- bolt barrel headspaced
- Odd bolt marking
- Need help diagnosing malfunction
- Feeding issues resolved (I hope)
- Sprinco Red Spring?
- Feeding Problem When Using Bolt Release
- Interesting FTE/FTF problem
- Stainless Steel & Perma Blue
- what spare part do you take for field repare?
- LaRue low profile gas block
- Bolt/BCG replacement
- first build and fail zero upper question.
- Cleaning ar15 barrel
- FF rail attachment that doesnt require removing the barrel or fsb?
- BCM SS Twist Rate
- FN Full Auto BCG
- Barrel Markings
- Black Weapons Armory nightmare story.
- DPMS AP4 5.56 buffer tube
- M4 Feed Ramp Geometry for Upper
- Replacing Action Spring/Buffer Spring
- Advice sought: switching receiver extensions
- 9mm buffer springs?
- School me about the buffer, please.
- Need help - front sight block question
- ST-T2 vs. H buffer
- KAC SR15 "green" bolt carrier
- Hammer pin resting point or walking?
- Receiver Extension Alignment
- Having an issue with my new BCM upper - help appreciated
- US NAVY small arms finish
- End plate sling point.
- 14.5 Middy: LW or Gov't profile
- Buffer Spring - what's the deal?
- Is this normal?
- Have you ever modified feedramps?
- Good place to get a gas tube roll pin?
- Are 14.5" Middys all sorted out?
- BUIS keeps moving rearward
- Going from rifle length gas to 16" barrel
- Gas tube removal, Part II/Done
- Handguard length
- Reliability of a JP match trigger in an AR15
- Bushmaster pencil barrel
- New build has problems shooting
- Gas ports, gas lengths and cold weather.
- Noveske N4 Light Upper Weight
- Problem with gas tube/ carrier key fit
- Charging handle hard to pull sometimes?
- Move back to GI magazines - a journey
- Negative effects of barrel recontouring?
- Newbie here - Ejection Port Dust Cover Question
- Bolt not locking back on last round. Any ideas why?
- Let's try to figure out this issue with my 5.45x39 upper - UPDATE
- Gas System Dynamics - Gas Ports
- HPT and MPI: still viable and necessary or outdated bureaucracy?
- Hit-Tech Coating & Bolt Life
- Front trigger assembly pin rotating
- Set Screw FSB for a Recce Rifle - Secure Enough?
- P-Mag problems
- Gouges on the Buffer face
- LWRC M6A2 SPR. Quality gun?
- The Necessity of Gas Key Staking
- Cold hammer forging question
- Colt Large pin question.
- Replacing the Extractor
- Question about Action Spring Replacement
- How I damaged my BattleComp Muzzle Brake
- FTF on a Daniel Defense
- Type of Steel Used in Milspec AR Triggers
- trigger/hammer markings
- Colt BCG Difference
- Colt LE 6920 Serial Numbers...
- f- marked front sight base
- KAC SR-15 owners - anybody got micrometer?
- Cherry pick the TDP
- SR15E3 Buffer/spring combo question
- New DDM4, and 'chip' on the bolt carrier... normal?
- Accuracy Issues w/ Carbon 15 Rifle?
- Video interview with Lothar Walther and Anschutz about barrel manufacturing methods
- Daniel Defense rail dissasembly?
- Noveske 14.5 Mid Length?
- RRA Lower - Mil Spec receiver extension
- Throat Erosion/Leade.
- AR15 Buffer Detent and Spring missing - Reason for failure to cycle?
- This is why you don't buy DPMS crap. (PIC)
- Simple PSA Lower Build Kit Question
- Out of spec lower ...
- How does this lower look?
- Newbie question(s)...long...
- Rear reciever plate fit problems
- Need help with a new build, muzzle brake or flash suppressor?
- Increasing bolt dwell time..
- Need to Locate Expert to Examine AR-15 that Exploded
- NEW Comparison Chart of Commercial M4 Pattern Carbines
- How often will a bolt not headspace correctly?
- Zeroing issues. Can't track it down...
- Flash hiders and suppressors
- Wave Springs
- Removing front sight block, pins impossible to punch out.
- Review: STARK SE-2 Grip
- Rear sight base differences.
- POF BCG in LMT PISTON SETUP??
- Rifle receiver extension distortion
- Gas Tube Life
- Who makes KAC's E3 IWS triggers?
- JARD safety issue
- Mounting AAC 51T Brakeout Comp
- Barrel Wrench / Receiver Block
- Gouging problem when locking the bolt back
- AR trigger grease
- Shaving FSB Questions
- 14.5" LO-PRO Pinned Flash hider
- PMAG revM not dropping in new LMT Lower [resolved]
- STUPID QUESTION!
- Politically correct Colt
- Visual comparison of handguard girth
- Heat Sink...worth it?
- Some Chrony Data For The Curious
- new bolts
- Question on upper/lower play
- MR556 barrel extension question
- S&W Melonite coated barrel vs Noveske chrome lined barrel.
- Low shelf high shelf in lower reciever ??
- 12" Larue Stealth Gas Port Size
- Castle nut staking?
- FSP Gas Leak (Pinned)?
- constant misfire
- FN bolt technical curiosity
- Comparing velocity b/t the opposite ends of the AR practical barrel length spectrum
- Rifle Buffer is stuck on the Retaining pin. Need help freeing it up!
- Installation of URX II Rifle Length on SR-15
- Reliability Enhancement Modification
- Reducing muzzle flash
- Cutting from 14.5 to either 10.5 or 11.5?
- Daniel Defense RIS II rail alignment with barrel...help?
- Question about LMT BUIS - problem solved!
- Front Sight Post
- Changing FSB - advice needed
- Colt AR-15 Mil Spec
- M&P 15 Sport Safety Selector
- BCG Identification?
- Safety Selector Position Issue
- Troubleshooting Noveske Switchblock Upper
- Magpul MBUS nut size
- A few questions after an awesome range day...
- detent spring
- Is 4140 barrel steel all that bad?
- Monolithic Rail Platform that can house a suppressor
- Adams Arms Gas Piston weight?
- 12" rail over noveske intermediate gas?
- BCM 14.5 Mid-Length with a full rifle stock will it???
- Switching Optic from rifle to rifle, same zero asking too much?
- Has anyone here shortened a KAC SR-15 barrel?
- Can the 6940 gas block be replaced with a standard FSB?
- LOW PROFILE LOCTITE GAS BLOCK QUESTION
- Front sight post wobble?
- got a real situation
- Question for those of yall with KAC amib-selectors
- Buffer Detent and Spring Broke...? With Pictures.
- Vltor A5 buffer, battle comp, G3 gun trigger on 11.5
- Flash hider not screwing on to muzzle
- A bit of wobble in my Omega X rail
- lmt piston gas port diameter.
- What are the top choice for a FA BCG ?
- KAC SR15 Bolt
- New member requires ID help
- short-stroking/bolt catch issue and question
- FSB to barrel, loose fit. Is this normal?
- How To Paint An Upper
- Failing Function Test
- Bolt catch not latching back properly.
- Unbelievably , absurdly long rail systems
- Wear Mark Inside Upper Receiver.
- Adjusting LMT rear sight
- Is this normal upper receiver wear?
- Geissele: Durability of SSA-E and S3G vs. standard SSA?
- Replace FSB with pinned FSB?
- how to replace my colt gas key (staked)
- Colt 6921 w/ NT4 AAR w/ pics
- A1 Stock Conversion
- Another FSP/FSB thread - Colt 6720
- Help me troubleshoot my SBR! (PICS ADDED)
- mount n slot top mount sling swivel
- Could one flute a lightweight barrel?
- 16" brl, rifle gas, & perm resident silencer, will it work?
- I have never seen this part break before.
- Help diagnose this issue after installing new upper
- Thinking of posting a "please diagnose my AR problem" thread?
- Ejector/Ejector Spring Change
- noveske/sws ff rail alignment?
- Feeding Issue
- Middie gas rifle handguard
- AR not unlocking
- BCM 20" upper buffer question...
- DD M4V5 Failure to extract
- Help with loose DD 9.5 FSP barrel nut
- Yet another stupid question. Rail related this time.
- Sharps' new bolt head design for M4 PIP bid
- Ever have a round get stuck up here?
- barrle Nut loctite
- dumb question? Buffer springs for midlength?
- Whats up with BCM staking jobs?
- Magpul bad lever on Sig Sauer 516