First photo is

an HK arm brace will work on G3 style guns I think any of the roller guns it'll work on had it on an MP 5K

reproduction knights arm G 36 sights no hardware

G 36 four prong flash hider

Sig 542 handguard One side of the spring assembly isn't working

Sigg 550 series rail and rear drum site MFI

Second photo

AK palm grip M92/M85 Hand guard set with zastava cheese grater upper all h/w

Add on under folder stock just requires you to drill a hole in the back of your trunnion and bolts in Basically gunsmith free under folder conversion

Third photo

Excellent condition retro M-16 stock set. This is surplus.

Set of six whole retro handguards 

2 A2 Flashers I believe they're 5/8 24 and opened up for 30 Cal

1/2-28 1 staggered three prong, 1 A2 grey, 1 Griffin armament flash hider/compensator with suppressor thread

Other ar 15 random parts

 

Let me know if you're interested anything or Make an offer on the whole lot

 

thanks

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