I have done the following Modifications to my Colt M4
Installed
G Super 42 Spring and Buffer
G SSA-E trigger
Sharps Reliable Bolt
5 coil Extractor Spring with black insert
JP one piece gas Ring
Titanium Firing Pin V7
Nickle Boron Full Auto Carrier
POF Roller Cam Kit
SureFire M73 Handguards (kept from OIF2)
Knight handguard Panels (kept from OIF2)
Knight Front Grip (kept from OIF2)
YHM folding front sight with Lug
ARMS 40L-SP rear sight
Vltor EMOD stock
ARMS # 22H Scope Rings
Leupold 3HD 1.5x4 scope
M68 Aimpoint (kept from OIF2)
CMMG Ambi Safety
WMD Nitromet carbine gas Tube
VTAC Sling (kept from OIF2)
SureFire 951 Light (kept from OIF2)
Hogue Pistol Grip
Raptor SL charging handle on order
SureFire - WARCOMP 556 CTN FLASH HIDER on order
I didn’t see a single thing on that list I would put on or replace on any of my Colt M4s, dont take offense, you chose to cast your pearls before the swine. Your gun, if it makes you happy.
Wow! Nice upgrades! It’s nice to see someone who knows how to get it done.
I’ll give you $100 for the complete junky Colt BCG, action spring, buffer, A2 grip, charging handle and the fire control parts that you removed. I have a loaner I’m building and the low quality parts won’t matter.
You can get an awesome looking muzzle device with the $100 to complete that sweet rifle.
Regarding the muzzle device, I used and liked the Warcomp, only changing in preparation for a mixed-caliber suppressor purchase.
With that said, if you plan to suppress, note that Pew Science has found the Warcomp to be detrimental for sound suppression. Just as info. The flash hider (if unsuppressed) or brake (if suppressed) may be better options for you.
In an AR, the firing pin is a direct contact pin, ie, when the hammer pushes the FP forward it maintains contact through indenting the primer. So, a lighter FP won’t make any difference.
Lighter FP can only be a problem with inertial firing pins, like a 1911, where the momentum of the FP is the only source of energy for primer ignition.
The full force SSA-E hammer spring when teamed up with the lighter Titanium Firing pin provides very fast lock time
And excellent performance same setup I have on my MK 12 also.
The AR also has floating firing pin that does not make contact with the primer until the hammer falls.
My AR-15 Firing Pin is made from Grade 6 Titanium. E Series is the standard pin with only one step. 0.015 Longer Firing Pin for reliability on cheap Ammo. If I remember right the original M16 had a Titanium Firing pin but production cost switched to cheaper steel firing pins.
Fairly obvious you do not understand how the firing pin and hammer work together, OR what ‘lock time’ is, OR what range of FP protrusion you really need or should have.
You got screwed and bought really expensive snake oil due to the lack of understanding…
About your floating firing pin ‘not making contact with the primer until the hammer falls’ - What happens if you load a round and then eject it without pulling the trigger? Look really close at your primer and tell us what you see… What made that dimple right where the firing pin would have touched it if the hammer never fell???
Lock time - As lysander said “when the hammer pushes the FP forward it maintains contact through indenting the primer”. Being lighter will not change anything with respect to ‘lock time’. Will not do jack squat except lighten your wallet…
FP Protrusion - A wise person measures what he has before adjusting or replacing parts to get more. You could have (if it was needed) increased the FP Protrusion you had on your Colt firing pin that you had in seconds with stuff you likely had already there at your home.
