AR15, M16 and M4 Webpage


This page, customer's rifles built from GunThings.com parts


Real Colt M16A1 Parts Set with new US made Hawkeye Tactical barrel.  This is the rifle used by the USA from the 1960s during the Viet Nam war until sometime in the 1980s when the M16A2 was adopted, also used by the Israelis, Philippines, and many other nations.  The original hammer and disconnector have been converted to semi-auto.  A new Rock River Arms semi-auto trigger and semi-auto selector is included in our kits.  Condition of kits is very good to excellent.  The furniture on these kits is NOT cracked or broken, new USGI buttplate is included if original is cracked.  These kits will fit the A1 or A2 lowers, they use the standard diameter push pins. Hawkeye Tactical M16A1 barrel, these are the skinny straight taper "pencil" barrels standard for the M16A1.  We had Hawkeye Tactical custom manufacture our barrels in 1 x 9 twist, this allows you to fire the old 55 gr. FMJ or the new 62 gr. SS109 Penetrator projectiles. If you use 1 x 12 twist, the SS109 projectile will not stabilize.  The barrels are 4140 CMV steel and freshly parkerized with all parts mounted.  The barrel extension has the new advanced M4 style feedramps which work great with the A1 uppers.  $Please call end of February for pricing and complete description.  We will have more barrels in a few weeks, kits are here, limited quantity

AR15 Barreling and Upper Receiver Support Tool.  Steel, heavy duty for long term use.  Made in USA.  Put in vise and silde on receiver with barrel.  Holds assembly while tightening barrel nut or can be used to support the upper while installing flash hiders, etc.  $40.00

Rock River Arms AR15 lower receiver parts set including 2 stage match grade trigger, new.  Excellent upgrade from the standard AR15 trigger.  Includes A2 grip and all parts in photo.  $150.00

Colt AR15 hammer, standard pin diameter


M16/AR15 charging handle latch, only 2 here


Original Colt M16A1 handguards, left and right side, very small cosmetic hairline crack, otherwise excellent condition, see photo.   $25.00 per pair

Original Colt M16A1 handguards, left and right side, missing a tooth at top or bottom, otherwise excellent like photo below.                $10.00 per pair

M16A1 butt swivel screw, new


AR15/M16 carbine handguards with heat shields, black, new $17.00   **one pair here



AR15 / M16 Mounts, Flash Hiders and Accessories

M16/AR-15 Carry Handle Mount, for mounting sighting devices over the front handguard, co-witnesses with iron sights.  New  $15.00  **only 3 here

Smith Enterprise Vortex Flash Eliminator
The world’s best flash suppressor for the M16-AR15 family of firearms.  Heat treated steel, parkerized, patented design.  Compatible with SEI Direct Connect (DC) Sound Suppressor.  $49.00 for M16/AR15/M4   

Also available for M14, FAL, HKG3/HK91, and AK, see the appropriate GunThings webpages.

Click here to see the videos and news updates of this incredible flash hider in action:

                  Click for Smith Enterprises Vortex Flash Hider Video 1

                  Click for Smith Enterprises Vortex Flash Hider Video 2

Sling Stud Adapter, Midwest Industries Part #MCTAR-07, standard swivel stud for detachable type swivels with weaver type clamp, high quality materials, steel stud, mount is 6061 aluminum with mil-spec hard coat anodizing, new.  1 in stock         $18.00




Early Flattop, before the uppers had an integral rail forging.  Carry handle was cut off and Weaver base installed.


SP1 Colt AR-15 Carbine


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