I never played airsoft but I did collect a few of the toys before getting into real firearms. Some of them are pretty impressive models with lots of details and working parts that replicate the real thing in weight and feel.
I still take a peak at them sometimes, especitally for certain no-no prohib type stuff where I can't own the real thing.
Some people buy dewats, will spend $1000 on a dewat AK, when an Airsoft clone that you can rack and shoot (BBs of course) will look pretty damn close to the real thing and not cost nearly as much (of course, I've also see Airsoft rifles which cost more than the real deal).
Here's an ACR I bought just for the handguard. Ended up flipping the rifle but kept the handguard. Keep in mind, I would not normally use airsoft parts on real guns, but the guys on the ACR forums down in the states have been running this particular handguard for years without issues.
http://4.bp.########.com/-mtsmHG4TwgM/VlD-xqU17mI/AAAAAAAAZWs/s_AmILjAx_o/s1600/DSC_0732.JPG
http://2.bp.########.com/-KGIJRammjB4/VlD-xalE6zI/AAAAAAAAZWo/FYG0YoIy_DY/s1600/DSC_0734.JPG
http://1.bp.########.com/-FmLa_P76qTo/VlD_BNWN89I/AAAAAAAAZXE/7SYkAjOzuWs/s1600/DSC_0735.JPG
http://3.bp.########.com/-Ed2XeQhJ7v4/VlD-_-ddesI/AAAAAAAAZW4/LReFGfO1EHQ/s1600/DSC_0736.JPG
http://1.bp.########.com/-bFIYWyGDZvw/VlD_LIDVvZI/AAAAAAAAZXU/FzGtMNlB4Bk/s1600/DSC_0738.JPG
http://1.bp.########.com/-fOGYak1pxcw/VlD_L2R44nI/AAAAAAAAZXc/x_Slr7-Dv2w/s1600/DSC_0739.JPG
http://1.bp.########.com/-QSB2iBD1b0U/VlD_WDlxabI/AAAAAAAAZXk/mSdWZ1fETms/s1600/DSC_0741.JPG
http://2.bp.########.com/-cmqxFON1YXI/VlD_ZBJdwkI/AAAAAAAAZXw/OtFW5DolbtA/s1600/DSC_0742.JPG
http://4.bp.########.com/-U1AiXiVT77k/VlD_iamySGI/AAAAAAAAZX8/3OohqZ4ySjA/s1600/DSC_0744.JPG
http://4.bp.########.com/-l0LaOztaT7w/VlD_lsRQUUI/AAAAAAAAZYM/ZeBuBpnChko/s1600/DSC_0745.JPG
http://2.bp.########.com/-voloqaoT4aQ/VlD_lS_cwxI/AAAAAAAAZYI/ajUeBIslcf0/s1600/DSC_0746.JPG
http://3.bp.########.com/-1O8t6ead-58/VlD_tHCiqxI/AAAAAAAAZYU/MGweQOeEDz8/s1600/DSC_0747.JPG
http://1.bp.########.com/-U9QX2dcSloc/VlD_4HRGa3I/AAAAAAAAZYs/ubMTPP_PLGo/s1600/DSC_0750.JPG
http://3.bp.########.com/-CU4VZAU9GjA/VlEAD0gzQkI/AAAAAAAAZZE/5g535wvVMHI/s1600/DSC_0755.JPG
http://3.bp.########.com/-CU4VZAU9GjA/VlEAD0gzQkI/AAAAAAAAZZE/5g535wvVMHI/s1600/DSC_0755.JPG
http://4.bp.########.com/-0vz1sYx8pgQ/VlEASIG15_I/AAAAAAAAZZc/wnJ2se6QjNE/s1600/DSC_0758.JPG
http://2.bp.########.com/-BXy1wgBJ9WI/VlEAWn2G86I/AAAAAAAAZZk/shKYFrRaV9o/s1600/DSC_0759.JPG
http://4.bp.########.com/-blZ7jP7dyLo/VlEAbUViDxI/AAAAAAAAZZ0/NgGzW5w7ciY/s1600/DSC_0761.JPG
http://1.bp.########.com/-dGk8Q5xL_QA/VlEAfH51xTI/AAAAAAAAZZ8/XfuVJmkIJqw/s1600/DSC_0762.JPG
http://3.bp.########.com/-vW9YGFHPR1A/VlEAvBN0OLI/AAAAAAAAZak/K1vptP0W4sg/s1600/DSC_0767.JPG
http://2.bp.########.com/-cwwLdjGCUDc/VlEBPpolWEI/AAAAAAAAZbs/3W4GYaLLIek/s1600/DSC_0777.JPG
I'd only had the ACR for a day before the Airsoft version showed up at my door so I was still new to this rifle and not familiar with all the parts yet. When I had all the parts sprawled out on the laundry room floor for these photos, I could barely tell the two apart and had to double check all the parts before reassebmling the rifle again, lol!