Parts

AR15 / M16 Selector detent spring

Standard AR15 / M16 Selector detent spring Can be used with any Milspec semi or full auto hammer.

AR15 / M16 Bolt catch detent spring

Standard AR15 / M16 Bolt catch detent spring Can be used with any Milspec semi or full auto hammer.

AR15 / M16 Buffer retainer spring

Standard AR15 / M16 Buffer retainer spring Can be used with any Milspec semi or full auto hammer.

AR15 / M16 Pivot pin detent spring

Standard AR15 / M16Pivot pin detent spring Can be used with any Milspec semi or full auto hammer.

Retro Rifles

Rifle Buffer

Standard Rifle buffer.

Retro Rifles

Carbine Buffer Tube / Receiver Extension - Mil Spec

Standard USGI Mil Spec sized Buffer Tubes (Receiver Extension). Available choices: 2 position&nb

Bushmaster

Bushmaster - A2 / M16A2 Pistol Grip

"A2" (M16A2 / M4) Pistol Grip Made by Bushmaster Has F3 or 4F as marking on inside. Comes with p

M16A2 Flash Hider-Phosphate

Standard A2 Flash Suppressor. Correct for all builds after approximately 1984-1988 (depending on bra

Polymer Trigger Guard with Pin - Bushmaster

Polymer trigger Guard with pin  

Bushmaster

Charging handle Spring - Bushmaster

Charging handle spring

Bushmaster

Bolt Catch Roll Pin - Bushmaster

5.56/.223 Bolt Catch Roll Pin 3/32" x 1/2"

Magazine Catch Assembly

Includes Magazine catch, Magazine Catch Spring, and regular size magazine catch.

Bushmaster

Magazine Catch Spring - Bushmaster

Magazine catch Spring

Bushmaster

Magazine Catch - Bushmaster

Will Fit Ar15 / Ar10

Bushmaster

.625 Gas Block Flat Top with Bayonet Lug and Swivel point

Made in USA  .625 Gas Block Flat Top with Bayonet Lug and Swivel point

Bushmaster

Hammer/ Trigger Pin - Bushmaster

AR15 TRIGGER OR HAMMER PIN .155 Single pin for the AR-15 hammer or trigger Made in USA

.750 Low Profile Gas Block

Features 4140 Hardened Steel Nitride Coated Comes with set screws and roll pin   Made

Extended Magazine Catch Button

Features Milspec 6061-T6 aluminum Weighs .05 OZ Made in the USA

Magazine Catch Button

Features Milspec 6061-T6 aluminum Weighs .05 OZ Made in the USA

Ambidextrous Charging handle

  Ambidextrous 7075 Aluminum construction   

AR15 Spring Kit

Spring Kit: Hammer Spring Trigger Spring Disconnector Spring Pivot pin detent spring (2) Sele

Retro Rifles

Buffer retainer pin- titanium

AR15 Buffer Retainer Pin - Titanium  

Retro Rifles

Buffer Tip- Blue

Tip for Ar15 / Carbine buffer  

Retro Rifles

Buffer Weight- 3 Different Weights

AR15 / AR 10 buffer weights 3 options: Aluminum .22 OZ Steel .64 OZ Tungsten 1.5 OZ

Retro Rifles

11.5 inch SOCOM Barrel - with M203 Cuts - Chrome Lined

  IN STOCK NOW! Bare Barrels ship immediately. Barrel assemblies will ship in Two weeks from

Barrel Extender - 9mm - 4.5 inch - (1/2 x 28)

Our 5.56 / .223 Barrel Extenders are so popular we attempted to make the same thing in a version wit

Ejection Port Cover Hinge Pin

Ejection Port Cover hinge pin. This is the long rod that support the assembly. Rod & c-clip onl

Ejection Port Cover Hinge Spring

Ejection Port Cover Hinge Spring. Spring only, no other parts included.   Made in the USA L

Ejection Port Cover Door

Ejection Port Cover Door. Door only, no other parts included.   New Black color Steel Mad

Ejection Port Cover Assembly

Ejection Port Door Assembly. This is the complete parts set for the Assembly. Includes: Door S

End Plate

Standard Milspec End Plate.   Steel Made in the USA Lifetime Guarantee

Colt 607 Rear Handguard Cap

The Colt 607 was the first attempt at making a submachine gun version of the M16 rifle. Few were mad

M16A2 / M16A3 / M16A4 Rifle Stock Spacer - Mil spec

The original M16 had about a 13.25" length-of-pull. The M16A2 had a Butt Stock about an inch longer

Barrel Nut Snap Ring

Mil Spec Barrel Nut Snap Ring (One of Four parts comprising the Barrel Nut Assembly).   The o

Weldon Spring

Weldon Spring for Barrel Nut Assembly.   The other 3 parts of the Barrel Nut Assembly: Slip

Rear Sling Swivel Roll Pin ( AR15 / M16 / M16A1)

Rear Sling Swivel Roll Pins There are Two Roll Pins used in the Rear Sling Swivel Assembly: - One

Rear Sling Swivel Stud ( AR15 / M16 / M16A1)

Rear Sling Swivel Stud for early generation AR15 / M16's with the rubber butt plate. Will not fit M

Retro Rifles

M16A2 / M4 Rear Sight Aperture (Flip)

This is the correct flip Aperture for all Colt models starting with the M16A2 onward. This would inc

Colt

Rear Sight Flat Spring ( AR15 / M16 / M16A1 / M16A2 / M4 )

Flat Spring for the Rear Sight Assembly for all model AR15's / M16's with a carry handle flip Rear S

Colt

Rear Sight Roll Pin ( AR15 / M16 / M16A1)

Roll Pin holding the Rear Windage Drum of the AR15 / M16 / M16A1 in place. Will not work on M16A2 S

Colt

Rear Sight Screw ( AR15 / M16 / M16A1)

Screw for the M16 Rear Sight Assembly. Only the Screw is included here on this page. Correct for u

Colt

Rear Sight Spring ( AR15 / M16 / M16A1)

M16 Rear Sight Spring. Correct for use in AR15 / M16 / M16A1. This is the Spring that sits under th

Colt

Rear Sight Detent ( AR15 / M16 / M16A1)

Detent for the Rear Sight Assembly for all model AR15's BEFORE the M16A2. This would include AR15 /

Colt

Rear Sight Aperture ( AR15 / M16 / M16A1 )

Original Colt M16 Rear flip Aperture used on the AR15 / M16 / M16A1 models.. as well as all other Co

Colt

Rear Sight Windage Drum ( AR15 / M16 / M16A1/ C7 / Daniel Defense )

Rear Sight Assembly Windage Wheel for AR15 / M16 / M16A1. Also used on all Colt models using the AR1

Retro Rifles

Slip Ring - Origianl Colt (Grey)

We offer many different types of Slip Rings (used before Delta Rings). This page is for the Colt Sl

Retro Rifles

Rifle Buffer Tube ( AR15 / M16 / M16A1 / M16A2 / M16A3 / M16A4)

Rifle Buffer Tube (Receiver Extension) for all fixed Rifle Stock versions of the AR15  ( M16 /

Retro Rifles

Rifle Buffer Assembly ( AR15 / M16 / M16A1 / M16A2 / M16A3 / M16A4)

Rifle Buffer Tube Assembly for all Rifle length AR15 / M16 / M16A1 / M16A2 / M16A3 / M16A4 models.

Forward Assist Roll Pin ( All Forward Assist models)

Forward Assist Roll Pin for all version assists (Teardrop, Large round, current Small Round, etc.)

Forward Assist Spring - ( All Forward Assist models )

Forward Assist Spring for all version assists (Teardrop, Large round, current Small Round, etc.) &n

Retro Rifles

Phantom Style Flash Hider - for AK47

Phantom style flash hider for AK-47. The Phantom style flash hider was made popular by YHM in the 1

Retro Rifles

Phantom Style Flash Hider- 2 types - for AR-15 / M16 / 5.56 / .223 / 12x28

The Phantom style flash hider was made popular by YHM in the 1980's - making it one of the earliest

Retro Rifles

Multi-hole Muzzle Device - 3.5" - AR15 / 5.56 / .223 / 1/2x28

Multi-Hole Muzzle Device for AR-15   * This device does not require Timing and can use any ty

Retro Rifles

Retro Flare style Flash Hider - AR15 / M16 / 5.56 / .223 / 1/2x28

Retro Flared Flash Suppressor. Similar in style to many 1970/1980's flash hiders.   * This mu

Retro Rifles

Retro Flared Flash Hider - 308 / 300 blackout / 5/8x24

Retro Flared Flash Suppressor. Similar in style to many 1970/1980's flash hiders.   * This mu

Retro Rifles

M16A2 / M4 - Closed End Muzzle Device - Banned States - 308 / 300 Blackout / 5/8x24

This is offered for States with a "Pinky Test".. meaning "Muzzle Brakes" are acceptable whereas a "F

Retro Rifles

Beehive Closed End Muzzle Brake - 308 / 300 blk / 5/8x24

Closed End Muzzle Break for 308 / 300blk. Holes all the way around - coupled with a tight constrict

Retro Rifles

Multi-Hole Muzzle Device - 3.5" - 308 / 300 Blackout / 5/8x24

Multi-Hole Muzzle Device for 308 / 300blk   * This device does not require Timing and can use

Retro Rifles

Phantom Style Flash Hider - 308 / 300 Blackout / 5/8x24

Phantom Style Flash Hider for 308 / 300Blk. The Phantom style flash hider was made popular by YHM i

Retro Rifles

Duck Bill & 3 Prong Flash Hiders - 308 / 300 blk / 5/4x24

A number of different Flash Hiders were tried on the original AR10 Here are Two of the more popula

Retro Rifles

M16A2 upper receiver stripped

M16A2 upper receiver stripped   CURRENTLY ON BACK ORDER - No Estimated Time frame for in stoc

Retro Rifles

Barrel Nut Assembly - Milspec

New Mil Spec Barrel Nut Assembly - with choice of Slip Ring or Delta Ring. All Four parts of the As

Sling Swivel - Front and Rear - All USGI Colt Models

Front and Rear Sling Swivel for all US Military models of the AR15 / M16 platform.   Notes on

Retro Rifles

Pistol Grips Screws - 4 Options - Flat & Hex head

Pistol Grip Screws The Standard USGI spec for this Pistol Grip Screw is 1 inch. We always thought

AR15 / M16 Hammer Spring

Standard AR15 / M16 Hammer Spring. Can be used with any Milspec semi or full auto hammer.

Front Handguard Cap - 5 Styles

Handguard Caps hold the front of the two pieces of the handguard to the barrel assembly. (The rear o

Buttstock Screw

Buttstock Screws for all generations of the AR15 / M16 / M16A1. The original AR15 / M16 (with the R

Buttstock Lever Hardware (CAR Stock metal parts)

The four metal hardware pieces that make up the lock mechanism for the sliding CAR Buttstock. Furn

Rear Sling Swivel Assembly - for early Rubber Buttpad Stocks (Colt model 601, 602, 604)

Sling Swivel Assembly for AR15 / M16 with original Rubber Buttpad Buttstock. ** These will not work

Retro Rifles

M16A1 Upper Receiver

3 Color Options: Black Grey Black/Green 2 Assembly Options: Stripped Assembly, comes wit

Retro Rifles

M16A2/ M4 Upper Receiver

2 Options Available: Stripped Assembly: Comes with rear sights, dust cover, and forward assist

Retro Rifles

AR15/ M16/ SP1 Slick Side Upper Receiver

2 Available Options: Stripped Receiver Assembly: Comes with rear sight and dust cover  

M16 Gas Tubes - All models AR15 / M16

Standard Stainless Steel AR15 / M16 Gas tubes.   Four Sizes available, based on Gas Port leng

Standard Charging Handle - Milspec - 7075 USA

Standard Milspec Charging Handle.   7075 Aluminum Type 3 Anodizing Made in the USA Lifetim

30 Round Pouch (ALICE) magazine carrier

Standard 30 Round ALICE Magazine Pouch - holds 3 x 30rd Magazines and 2 grenades (one on each side).

Auto Sear Pin - M16 - Full Auto

Full Auto Sear Pin for the M16 Auto Sear (not included). This is for the pin only.   Steel

Disconnector Spring - AR15 / M16

Disconnector Spring for all standard AR15 / M16 trigger group disconnectors. Will work in Semi or fu

Trigger Spring - AR15 / M16 / M4

Trigger Spring for all USGI model AR15 / M16 models. Note: Both Semi and Full Auto Triggers use the

AR15 / M16 / M4 - Selector Switch - "Dimple" or "Flat"

The Original AR15 / M16 models (601 and 602) had a selector switch with a dimple. All later models d

AR15 / M16 Disconnector

We offer Two different Disconnectors: Semi Auto Full Auto This page is for the Disconnector o

7.5 Inch - AR15 / M16 Barrel

This is a great little 7.5" AR Barrel perfect for Pistol or PDW builds. 5.56 NATO 1:7 twist 415

AR15 / M16 Trigger

Standard Milspec AR15 (Semi Auto) and M16 (Full Auto) Triggers. Used in the AR15, M16, M16A1, M16A3

AR15 / M16 Hammer

AR15 or M16 Hammer (Choose from the Pull Down Menu above) If you also need a Hammer Spring (Here)

M16 Auto Sear, with Spring

Standard M16 Auto Sear, with Spring. As used in the Full Auto AR15, M16, M16A1, M16A3, M4, Mk18, Mk

Retro Rifles

M16A2 / M4 "Square" Front Sight Post - "Short" or "Tall"

M16A2 Front Sight Post. Also known as an "A2" or "M4" Post (depending on which height) This Post co

Tuneable Muzzle Break - Ultra Light - 5.56 / .223 / 1/2x28

This is an interesting option for advanced level shooters who want to dial in the exact Blast/Compen

Fake Suppressor 6 inch by 1 inch- 2 Finish Options

6 inches long, 1 inch diameter and very light weight at only 6 oz. Available in Black or Shiny unfi

Lock Ring & Castle Nut (Rare, Hard to find)

Used to tighten the Carbine Buffer Tube to the Lower Receiver, the US Military has used two differen

Front Sight Tools - M16A1 / M16A2 / M4 / 733 / C7 / C8

We offer 4 different AR15 / M16 / M4 Sight tools:   Original style, A1 rear, A1 front A1 F

M16A2 Flash Hiders

Standard A2 Flash Suppressor. Correct for all builds after approximately 1984-1988 (depending on bra

AR-15 Lower Parts Kit

Full lower parts kit to populate your lower receiver. Includes Semi-Auto Hammer, Trigger and your ch

Forward Assist - All 4 types

All 4 types of Forward Assists used by the US military: Teardrop (1963-1982) Large Round- Modifi

Barrel Extenders - 3.5 & 4.5 inch length (5.56 / .223 )

Barrel Extenders to increase your barrel length as long as you need. Comes in 3 and 4 inches section

Muzzle Device - BANNED STATES

These muzzle devices are designed and manufactured by Retro Rifles specifically to pass the "Pinky t

M4 Buttstock

Standard M4 profile collapsing Stock. Current issue style. Mil Spec Size.   2 Options: St

Retro Rifles

"Triangle" Charging Handle - Colt 601 / AR15 Prototypes

This is the first version of the AR-15 Charging Handle used on Armalite prototypes, the Colt 601 and

Retro Rifles

M16A1 Birdcage Flash Hiders

The A1 Birdcage flash hider replaced the 3 Prong on all M16 rifles in 1967, and continued to be used

20" M16A2 / C7 Barrel Assembly or Stripped

Options: Stripped Barrel 5.56 Nato 1:7 twist Nitride Finish Made in USA M16A2 R

Retro Rifles

Rifle length Buffer Spring - All fixed Rifle Stock models

Correct for all Rifle length Stock builds - A1, A2, C7, etc.   Made in the USA Lifetime Guar

Retro Rifles

Buffer Spring - Carbine / Commando / M4 / XM177

Mil-Spec Carbine Buffer Spring for all sliding stock variants.   Made in the USA Lifetime Gu